JP2949050B2 - Frost protection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a frost damage prevention device for preventing crops grown in a field from being damaged by frost.

[0002]

2. Description of the Related Art Crops such as mulberry and fruit trees are greatly damaged by frost when the growth of sprout has progressed.
In particular, fruit trees such as apples, pears, peaches, and cherry blossoms suffer catastrophic damage due to the damage of the growing vase by freezing frost.

[0003] The frost damage to crops caused by this late frost is such that heavy cold air generated by intense radiant cooling flows on a slope like a river during the night of a windless sunny day, and accumulates in basins and lands with low valley streaks. This is caused by boosting the warm air there and wrapping the area around the crop with cool air.

Accordingly, as a countermeasure against frost damage to crops caused by late frost, as shown in FIG. 1, a burner device 1 such as a kerosene burner is arranged at a desired interval in a field, and The chimney 2 for leading the combustion gas is erected in a high column shape so that the upper end thereof reaches the warm air layer Y pushed up by the layer W of heavy cool air generated by radiant cooling,
At the upper end of the chimney 2, a blower F operated by energization of a motor M is attached, and the blowing direction by the operation is changed to the ground surface G.
It is mounted and supported so as to face L. Then, the operation of the burner device 1 and the blower F is controlled by a temperature sensor disposed at an appropriate place in the field, and when the temperature near the ground surface drops to a predetermined temperature due to the flow of cool air due to radiant cooling. By operating the blower F, the warm air of the warm air layer Y, which is pushed up by the cool air to form the inversion layer, is blown toward the surface of the ground, thereby re-inverting the temperature near the surface of the ground, and cooling the air around the crop. And at the same time, by the operation of the burner device 1, the hot air discharged from the discharge port 20 of the chimney 2 is joined to the warm air of the warm air layer Y by the operation of the blower F and blows toward the ground surface GL. It lowers and raises the anti-frost effect.

[0005]

According to the above-mentioned frost prevention means, the inversion layer formed by pushing up the warm air layer Y by the cold air layer W usually occupies a height of 6 to 10 m. In order to locate the blower F in the warm air layer Y higher than the inversion layer, the chimney 2 as a support must be erected to at least about 8 m.
The production cost is high in order to ensure that the blower F can be assembled and supported, and the hot air generated by the burner device 1 is discharged through the long chimney 2 and the discharge port 20 at the upper end thereof. Therefore, there is a problem that cooling is remarkable and thermal efficiency is poor.

[0006]

The present invention has been made in order to solve the above-mentioned problems occurring in the conventional means, and it is intended to ensure that a blower F is located in a warm air layer Y above an inversion layer.
The present invention provides a new means for supplying hot air generated by the burner device 1 to the blower F in a state of high thermal efficiency, while ensuring high support at a low cost. Aim.

[0007]

According to the present invention, as a means for achieving this object, a blower which is activated by energizing a motor is provided on the upper end of a column which is erected high in a field. A frost damage prevention device, wherein a burner device that is mounted and supported so that a blowing direction by operation is directed to the ground surface and generates a hot air is disposed close to and below the blower and mounted and supported on the support post. It is to raise.

[0008]

According to the means of the present invention, the blower F is supported at a height of about 8 m from the ground surface GL without using the chimney 2 of the burner device 1 and separately from the chimney 2. Since the formation is performed using the pillars 3 to be formed, the pillars 3 formed in a form suitable for supporting the blower F with reinforced concrete or an iron pipe or the like can be used, so that the manufacturing cost can be reduced and a strong one can be manufactured. Become like Then, the burner device 1 is mounted and supported on the upper end side of the support column 3 via a mounting bracket 4 so as to be adjustable vertically.
The upper end side of the chimney 2 connected to the furnace 11 may be located just below the blower F mounted and supported on the upper end of the column 3, so that the hot air generated by the burner device 1 can be significantly rejected. Can be supplied to the blower F as a good condition.

[0009]

Next, an embodiment will be described in detail with reference to the drawings. In the drawings, the same reference numerals are used for components having the same effects as those of the conventional means.

FIG. 2 is an overall schematic view of the apparatus according to the embodiment of the present invention. In FIG. 2, 3 is a column, F is a blower, 1 is a burner device, 4 is a mounting bracket, 5 is a fuel tank, and 6 is a blower. 1 shows an oil pump.

The strut 3 has a diameter of about 1 in this example.
A steel pipe column having a length of about 30 mm and a length of about 8 to 9 m, which is erected at a predetermined place in a field via a base 30 and supports 31.
... are provided at appropriate intervals above and below.

The blower F is of a low-noise, large-air-volume type. As shown in FIG. 3, the blower F is swung right and left on the upper surface of an assembling base 70 which is assembled and fixed to the upper end of the column 3. A base 71 is provided, and a bracket 73 is provided on the rotating base 71 so that the depression angle can be adjusted or automatically changed by vertical rotation about a horizontal pivot 72, and a wind wing is provided on the output shaft of the motor M. 74 are formed by assembling the blower main body 7 to which the.

As shown in FIG. 4, the burner apparatus 1 is of a type in which a furnace 11 is combined with a gun type burner main body 10 and hot air is taken out from a discharge port 20 of a chimney 2 connected to the furnace 11. The outer periphery of the burner body 10, the furnace 11 and the chimney 2 is surrounded by a cover 12 which also serves as a supporting machine frame of the burner body 10, and the columns 3 are attached by mounting brackets 4 attached to the outer surface of the cover 12.
It is mounted on a support.

The burner body 10 atomizes the fuel oil supplied from the nozzle through the oil supply pipe 13 and ejected from the nozzle, discharges the fuel oil from the discharge cylinder 14, and ignites and burns the fuel oil with a discharge type ignition rod. It is a normal gun type burner, but it is not a suction type in which fuel oil is sucked by a suction pump provided in the burner body 10 and discharged from a nozzle, but a pressure feed type oil feed pump provided in the fuel tank 5 side. 6, the fuel oil pressure-fed through the oil feed pipe 13 is ejected from the nozzle.

This is because the burner device 1 is separated from the fuel tank 5 and is supported at a high position on the support column 3 so that the oil pumping stroke is lengthened. If suction is performed via the air, air is generated in the oil feed pipe 13 and smooth oil feed cannot be performed, resulting in misfiring. This is to prevent this.

The fuel tank 5 is separated from the burner main body 10 and mounting brackets 50, 50 provided on the outer surface of the tank 5 are attached to the lower end side of the pillar 3, so that the pillar 3 It is mounted on a support. The oil feed pump 6 has its bracket attached to the outer surface of the fuel tank 5.

A cover 12 surrounding the burner main body 10 and the furnace 11 of the burner device 1 has an intake port 120 for opening air on the lower surface side, and a portion surrounding the chimney 2 on the upper surface side has a chimney. 2, a cap-shaped diffuser 122 is connected to the upper end of the outer cylinder 121. Then, by this, the fuel burns in the furnace 11 of the burner device 1 and the discharge port 20 of the chimney 2
The hot air discharged from the inside of the cover 12 flows through the inside of the cover 12 so as to be sucked from the intake port 120 on the bottom surface of the cover 12 and blow out from the open port on the upper end side of the outer cylinder 121, and exchange heat with the peripheral surfaces of the furnace 11 and the chimney 2. Mix the outside air heated by
Cap-shaped diffuser 12 attached to the upper end of outer cylinder 121
2 and is blown out from the outlet 123 provided in the diffuser 122 to the periphery.

An air inlet 12 provided on the bottom of the cover 12
The bird enters the opening at the upper end side of the outer cylinder 121 surrounding the cylinder 0 and the chimney 2 and the outlet 123 formed in the cap-shaped diffuser 122 connected to the upper end side of the outer cylinder 121. There are provided nets 124 for preventing the production. This bird-proof net 124...
To be provided at all of the open ports to the outside.

The burner device 1 is provided with the mounting bracket 4.
Is pivoted with respect to the support 3 around the support 3,
The displacement of the column 3 can be adjusted in the circumferential direction.
Then, by adjusting the displacement of the column 3 in the circumferential direction, as shown in FIG. 5, the diffuser 122 serving as the substantial hot air discharge port 20 is moved in the blowing direction of the blower F supported on the upper end of the column 3. There is a case where it is supported on the column 3 so as to occupy the rear position.

The mounting bracket 4 mounted on the outer periphery of the cover 12 is formed in a tubular shape which fits vertically on the outer periphery of the column 3 so that it can slide freely. By tightening 40, the burner device 1 can be fixed at the desired height position. Then, the blower F is substantially connected to the burner device 1 so that the hot air generated by the burner device 1 becomes hot air having a temperature that does not damage the blower F and the motor M thereof and is supplied to the blower F. The distance between the diffuser 122 serving as a discharge port for the hot air can be adjusted.

The adjustment of the distance between the blower F and the diffuser 122, which is a substantial hot air discharge port of the burner device 1, is performed by fixing the burner device 1 to the support 3 and setting the burner device 1 Chimney 2 connected to furnace 11
The outer cylinder 121 of the cover 12 surrounding the outer periphery of the outer cylinder 121 is formed so as to expand and contract up and down.
In some cases, this is performed by vertically displacing the blower F.

Reference numeral 8 denotes a control panel for operating and controlling the depression angle adjusting operation mechanism and the swing operation mechanism of the blower F, the motor M and the burner device 1 of the blower F, and the oil pump 6 and the like. It has been supported.

S is a temperature sensor that controls the blower F and the burner device 1 to operate automatically when the temperature drops to a temperature at which frost may occur. It is arranged and installed at the part approaching.

[0024]

As described above, the frost damage prevention device according to the present invention includes the burner device 1 for supplying hot air to the blower F supported on the upper end of the column 3 erected in the field. Since it is supported at a high position close to the blower F by using the support 3 for supporting the blower F, the distance between the hot air generation position by the burner device 1 and the blower F supported at the upper end of the support 3 is increased. Since it comes close, the hot air generated by the burner device 1 can be sent to the blower F in a state where there is almost no heat loss, and a frost protection device with good thermal efficiency can be obtained.

The hot air generated by the burner device 1 is supplied to the blower F and its motor by adjusting the change of the mounting position of the burner device 1 with respect to the column 3 or the vertical displacement of the hot air discharge port 20 of the burner device 1. M can be adjusted so as not to damage it, and can be brought closer to the blower F.

Further, the fuel tank 5 is formed separately and is disposed below the burner device 1.
When the fuel oil is supplied to the burner device 1 by means of the oil supply pipe 13, the supply of the fuel oil to the fuel tank 5 is facilitated, and the oil supply to the burner device 1 is smoothly performed so that the burner device 1 A misfire due to air entrapment can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional frost damage prevention device in use.

FIG. 2 is an overall schematic front view of the frost damage prevention device according to the present invention in a use state.

FIG. 3 is a perspective view of a state in which the frost damage prevention device is assembled and supported on an upper end portion of a support column of the blower of the above frost protection device.

FIG. 4 is a partially cutaway front view of the burner device of the above frost damage prevention device in a state where the burner device is assembled and supported on a column.

FIG. 5 is a perspective view of an example in which the above frost damage prevention device is assembled to an upper end portion of a support column in a different manner.

[Explanation of symbols]

F: blower, GL: ground surface, M: motor, W: cold air layer, Y: warm air layer, S: temperature sensor, 1: burner device,
10: burner body, 11: furnace, 12: cover, 13
... oil feed pipe, 14 ... discharge cylinder, 120 ... intake port, 121 ... outer cylinder, 122 ... diffuser, 123 ... outlet, 124 ... net, 2 ... chimney, 20 ... discharge port, 3 ... support, 30 ... base, DESCRIPTION OF SYMBOLS 31 ... Support, 32 ... Scaffolding bolt, 4 ... Mounting bracket, 40 ... Tightening screw, 5 ... Fuel tank, 50 ... Mounting bracket, 6 ... Oil pump, 7 ... Blower body, 70 ... Assembly stand,
71: turntable, 72: pivot, 73: bracket, 74:
Wing wing, 8 ... Control panel.

Claims (7)

(57) [Claims] Claims: 1. An upper end of a column 3 to be raised up in a field,
The blower F, which is activated by energizing the motor M, is mounted and supported in such a manner that the blowing direction of the blower is directed toward the ground surface GL, and the burner device 1 for generating hot air is disposed close to and below the blower F. A frost damage prevention device, wherein the frost damage prevention device is mounted on the column 3 to be supported. 2. At the upper end of a column 3 that stands upright in a field,
The blower F, which is activated by energizing the motor M, is mounted and supported in such a manner that the blowing direction of the blower is directed toward the ground surface GL, and the burner device 1 for generating hot air is disposed close to and below the blower F. A frost damage prevention device, wherein a hot air discharge port 20 is disposed at a position rearward of the blower F supported on an upper end portion of the support 3 in the blowing direction. 3. The hot air discharge port 20 of the burner device 1 supported on the column 3 can be vertically displaced with respect to a blower F supported on the upper end of the column 3. Frost protection device. 4. A burner device 1 for generating hot air is supported on a column 3 via a mounting member 4, and the mounting member 4 is mounted on the column 3.
The frost damage prevention device according to claim 1, wherein the frost damage prevention device is assembled so as to be vertically adjustable. 5. The frost damage prevention device according to claim 1, wherein the burner device 1 for generating hot air is supported on the support column 3 via a mounting bracket 4 so as to be able to adjust the circumferential displacement of the support column 3. apparatus. 6. An intake air for surrounding a burner body 10 and a furnace 11 and a chimney 2 connected to the furnace 11 of the burner device 1 for generating hot air with a cover 12, and for allowing outside air to flow into a bottom side of the cover 12. A mouth 120 is opened, and a portion of the cover 12 surrounding the chimney 2 is
1, the outside air heated by the heat exchange with the peripheral surfaces of the furnace 11 and the chimney 2 flowing through the inside of the cover 12 is combined and mixed with the hot air generated by the burner device 1. The frost damage prevention device according to claim 1, characterized in that: 7. An upper end portion of a column 3 erected on a field,
The blower F, which is operated by energizing the motor M, is mounted and supported in such a manner that the blowing direction of the blower is directed to the ground surface GL, and the burner device 1 for generating hot air is disposed close to and below the blower F. A fuel tank 5 formed separately is disposed below the burner device 1 and the fuel tank 5 is provided to the burner device 1 through an oil feed pipe 13 by a pressure feed type oil feed pump 6. A frost protection device characterized by supplying oil.