KR20170135123A - Agricultural Tube Heater - Google Patents

Abstract

The present invention relates to an agricultural tube heater. More specifically, the present invention directly blows hot wind of a proper temperature range to an inner space of a plastic greenhouse or a greenhouse to smoothly maintain life of crops and growth of the crops and supplies carbon dioxide generated in a combustion process to promote the growth of the crops.

Description

Agricultural Tube Heater

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heating tube for agricultural use, and more particularly, to an internal space of a greenhouse or a greenhouse, by blowing warm air in an appropriate temperature range, Which can promote the growth of crops.

Generally, in order to maintain the life of the crops smoothly, agricultural hot air fans or agricultural hot air fans are used to keep the internal temperature of greenhouses constant.

Such agricultural hot air or hot air blows hot air or hot air, which is heated by the outside air, into the plastic house or greenhouse to keep the internal temperature of the plastic house or greenhouse constant.

For example, Korean Registered Patent Publication No. 10-0952564 and Korean Patent Registration No. 10-0800306 disclose "electric heaters for agriculture" and "multi-stage heaters".

The 'agricultural electric hot air fan' comprises an enclosure 20; The suction ports 30a and 40a arranged in the opposite direction to each other and the discharge ports 30b and 40b arranged in parallel are disposed in parallel to the lower side of the enclosure 20 and spaced apart from the enclosure 20 by a predetermined distance G, A pair of blowers 30 and 40, respectively; An inner heat sink 50 installed at the side of the discharge ports 30b and 40b of the pair of blowers 30 and 40; A plurality of electric heating elements (60) arranged in a row in the inner column (50) and arranged in a shifted manner; And hot air discharge tubes (60, 62) installed upstream of the inner heat sink (50) so as to protrude from the outer shell (20).

The 'multi-stage hot air fan' is provided with a multi-stage heat exchange plate 4 having a plurality of square pipes 4a and a front single pipe 4b welded together in a vertically spaced manner, The square pipes 4a of the plate 4 are configured to be staggered through the two side communication portions 16a to 16e of the main body case 2 while the lowermost communication portion 16a is provided with the combustion chamber 8 in which the burner 10 is installed. And the external air A supplied forcibly by the blower 20 installed in the main body case 2 is connected to the heat exchange plate 4 Exchanged while passing through the heat exchange passage P between the main body case 2 and the main body case 2 and discharged as hot air through the air outlet 22 of the main body case 2. [

However, in order to supply high-voltage electricity to the electric heating element 60, a conventional electric hot air fan or a hot air heater has been required to construct a separate high-voltage electric facility inside the greenhouse and to construct an electric facility therefor. Therefore, there is a problem that the initial investment cost is too much consumed to install the agricultural heating in the greenhouse or the greenhouse.

In addition, since the conventional multi-stage hot air blower uses the burner 10, an electric facility is not required. However, in order to supply hot air to the inner space of the greenhouse or the green house, a separate pipe or duct is required. That is, a piping structure is required in which hot air blown to the air outlet 22 is supplied to a certain space by connecting the vinyl pipes P to the air outlet 22, respectively. Therefore, in the conventional agricultural tube heat fan, a duct pipe must be separately installed when the hot air fan is installed in a greenhouse or a greenhouse, and thus the structure is complicated and the cost is increased.

7, the conventional agricultural hot air fan blows a relatively small amount of external air sucked by the impeller 34 toward the heater 50, and the hot air heated by the heat exchange with the heater 50 is discharged to the outside As shown in FIG. Such a conventional agricultural hot air fan is heated to 10 ° C or higher and then discharged to the inner space of the greenhouse or the greenhouse through the discharge port, so that the temperature of the hot air exceeds 50 to 80 ° C or more. Therefore, there is a problem that when the hot air of such high temperature is directly applied to crops, the crops are damaged by heat.

(0001) Korea Registration No. 10-0952564, Announcement date April 12, 2010 (0002) Korean Registration No. 10-0743045, date of announcement July 30, 2007 (0003) Korean Registration No. 10-1304120, Publication Date September 05, 2013

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art, and it is a main object of the present invention to provide a method and apparatus for heating a hot air, Thereby preventing damage to the agricultural tube hot air fan.

Further, the present invention provides an agricultural-type tube warmer which does not require a duct pipe for distributing hot air to a greenhouse or a greenhouse by directly spraying hot air of a temperature range suitable for lifesaving of crops into a greenhouse or a green house .

In addition, the present invention does not require a high-voltage electric device or an electric facility construction for it by making warm air by using a high-temperature combustion gas generated in the process of burning oil, and the carbon dioxide generated in the combustion process is used in a green house And to provide a agricultural tube hot air fan capable of promoting the growth of crops.

Further, according to the present invention, a re-burner carrier, a catalyst filter, and the like are selectively installed in the middle of a heat-radiating pipe to re-burn unburnt fractions and prevent incomplete burning gas or odor generated by exhaust gases beforehand, And to provide the agricultural tube hot air fan which can be used.

It is another object of the present invention to provide an agricultural-type tube heat fan capable of heating outside air to a suitable range of temperature in a short time and blowing a large amount of warm air.

In order to achieve the object of the present invention, the agricultural-type tube warmer according to the present invention comprises:

BACKGROUND ART [0002] In an agricultural tube heat fan for supplying warm air to the inner space of a greenhouse or a greenhouse,

A box-shaped case having front and rear openings and an internal space of a predetermined size;

A combustor for burning a predetermined amount of oil and spouting a flame and a high temperature combustion gas into a combustion tube installed in an inner space of the case;

A heat dissipation pipe installed in a zigzag manner in an inner space of the case and discharging heat to the outside while moving a high temperature combustion gas generated in the combustion tube upward;

A blower for blowing outside air to the outside of the case, the blower blowing outside air to the inside of the case to make contact with the heat radiating pipe, Wow;

A reflector installed on an open rear side of the case to freely pass outside air sucked by the blower and to prevent heat radiated from the heat radiating pipe from being discharged to the outside of the case;

And a gas outlet provided at a rear end of the heat dissipating tube to discharge the combustion gas into the inner space of the case.

In the present invention, the heat dissipation tube is cylindrical, the lower end thereof is connected to the combustion tube, and the U-shaped connection tube is connected to both ends of the heat dissipation tube to constitute upper and lower ends, It is installed in two rows in front and rear in the inner space of the case.

The heat pipe heats the outside air sucked by the blower to 5 to 10 ° C.

The reflector is composed of a plurality of small inclined plates, and the plurality of inclined plates are installed at an inclined angle at a predetermined angle up and down on the open rear surface of the case.

 The blower is fixed to a front plate provided on an open front face of the case. The front plate is protruded forward so as to guide hot air inside the case to the blower, and a mixing space do.

A filter for completely burning the incomplete combustion gas contained in the combustion gas is installed in the heat dissipation tube.

At the rear end of the heat dissipating tube, a silencer including a sound absorbing material, a metal net, and a coil spring is provided.

According to the agricultural tubular hot air fan according to the present invention, since the warm air is uniformly supplied throughout the inner space of the greenhouse and the greenhouse, the heating efficiency is increased rapidly and uniformly, thereby increasing the heating efficiency of the greenhouse and the greenhouse.

In addition, since the temperature difference between the hot air blown from the agricultural tubular hot air fan and the outside air flowing into the agricultural tubular hot air fan is maintained at 5 to 10 ° C or less, the crop can be prevented from being damaged by the hot hot air.

In addition, the present invention can promote the growth of crops by purifying the incomplete combustion gas generated when the oil is burned, and then discharging the incomplete combustion gas to the interior of the greenhouse or the greenhouse to raise the concentration of carbon dioxide in the greenhouse or the greenhouse.

In addition, the present invention has an effect of increasing the amount of hot air blown out from the agricultural tubular hot air fan and increasing the wind speed, so that a small number of agricultural tubular heat fans can be used and the inside of the whole greenhouse and the greenhouse can be heated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front perspective view of an agricultural-type tube warmer according to the present invention,
FIG. 2 is a rear perspective view of the agricultural-type tube warmer according to the present invention,
FIG. 3 is a front view showing the internal structure of the agricultural-type tube warmer shown in FIG. 1;
Fig. 4 is a sectional view of the agricultural-type tube heat fan shown in Fig. 1,
FIG. 5 is a front view showing a structure of a heat radiating pipe according to the present invention, FIG.
6 is an explanatory view showing the operation according to the present invention.
FIG. 7 is a conceptual diagram of a conventional agricultural air tube heater.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of the agricultural-type tube warmer according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a rear perspective view of the agricultural tube heat fan according to the present invention, FIG. 3 is a front view showing the internal structure of the agricultural tube heat fan shown in FIG. 1, and FIG. 1 is a cross-sectional view of the agricultural tube heat fan shown in Fig. 1; Fig.

As shown in the figure, the agricultural-type tube heat fan 1 of the present invention comprises a casing 10, a combustor 20, a heat radiating tube 30 and a blower 40.

The case 10 is formed in a rectangular box shape and has an internal space 11 formed therein with a predetermined size. The inner space 11 is provided with a combustor 20 and a heat radiating pipe 30.

The case 10 is in the form of a box having its front and rear open. A blower (40) is installed on the front surface of the case (10). One or two blowers (40) may be installed depending on the size. The blower 40 sucks outside air through the opened rear surface and blows the hot air that has been heat-exchanged inside the case 10 to the outside.

A front plate 12 for fixing the blower 40 is installed on the front surface of the case 10. The front plate 12 may be formed to protrude forward so as to guide warm air inside the blower 40. Therefore, a mixing space 13 having a predetermined size is formed behind the front plate 12. The mixing space (13) mixes external air with hot air or combustion gas.

A reflective plate 15 is installed on the open rear surface of the case 10. The reflection plate 15 prevents heat radiated from the combustion tube 27 and the heat dissipating tube 30 inside the case 10 from being discharged to the outside. That is, when the heat of the combustion tube 27 and the heat radiation tube 30 is discharged to the rear of the case 10, not only the thermal efficiency is lowered but also the crops planted on the rear side of the case 10 can be damaged. To this end, the reflection plate 15 has a structure in which outside air is allowed to flow freely and heat radiated from the inside can be blocked.

Preferably, the reflection plate 15 may include a plurality of small swash plates 15a. The swash plate 15a is installed to be inclined at a predetermined angle at regular intervals in the vertical direction on the open rear surface of the case 10. [ Therefore, the outside air flows freely through the gap between the swash plate 15a, but the heat radiated from the combustion tube 27 and the heat radiation tube 30 is reflected by the reflection plate 15a and is not emitted to the outside.

Next, the combustor 20 is composed of a burner 24, a fuel tank 26, a combustion pipe 27, and a display and control panel 28. The fuel tank 26 is installed at a lower portion of the case 10. The burner 24 is installed on the upper portion of the fuel tank 26. The burner 24 burns the oil supplied from the fuel tank 26 to generate a flame and a combustion gas. The combustion tube 27 has a cylindrical shape and is horizontally installed at a lower end portion of the inner space 11 of the case 10. The combustion tube 27 is connected to the burner 24. Therefore, the flame and the combustion gas generated in the burner 24 are discharged into the combustion tube 27.

The heat dissipation tube 30 is formed in a cylindrical shape and connected to the combustion tube 27 to move the high temperature combustion gas upward and to release heat to the outside. The heat dissipation tube 30 is installed in a zigzag manner in the inner space 11 of the case 10. That is, the heat dissipation pipe 30 is connected to the U-shaped connection pipe 31 at both ends thereof, and has a multi-stage structure. A combustion tube 27 is connected to the lower end of the heat dissipating tube 30 and a gas exhaust port 39 for discharging the combustion gas into the case 10 is formed at an upper end thereof. Therefore, the high-temperature combustion gas discharged from the combustion tube 27 is moved upward along the heat-radiating pipe 30 to perform heat exchange with the outside air, and finally, is discharged through the gas outlet 39 to the inner space (11).

Preferably, the heat dissipating tubes 30 are installed in upper and lower ends and two rows in front and rear. That is, the plurality of heat-radiating pipes 30 are installed so as to be spaced apart from each other by a predetermined distance. A U-shaped connecting pipe 31 is installed between the upper heat-radiating pipe 30a and the lower heat-radiating pipe 30b at an angle.

As described above, according to the present invention, the heat radiating pipe 30 is installed at the upper and lower ends and is provided in the front and rear two rows so as to extend the entire length, and the gap between the upper heat radiating pipe 30a and the lower heat radiating pipe 30b is tightened, So that the outside air can be heated quickly. That is, the heat pipe 30 can heat the outside air at room temperature to about 5 to 10 ° C for a short time. That is, the heat radiating pipe (30) of the present invention is characterized in that outside air at room temperature is not heated to 10 ° C or more.

Finally, the blower 40 installed on the front surface of the case 10 sucks the outside air into the inside of the case 10, and blows the hot air and the combustion gas heat exchanged inside the case 10 to the outside. Particularly, the present invention opens all of the rear surface of the case 10 so that a large amount of air can be blown. That is, by blowing a large amount of warm air at a low temperature, it is possible to keep the internal temperature of the greenhouse or the greenhouse at an appropriate temperature range, but to prevent damage to the crop by the hot wind at a high temperature.

Meanwhile, the heat dissipating tube 30 is provided with one or more filters for removing incomplete combustion substances included in the combustion gas. For example, a filter for re-combustion 41 is provided at the rear end of the combustion tube 27. Further, a catalytic filter 42 is provided between the re-combustion filter 41 and the rear end of the heat-radiating tube 30. An adsorption filter 43 is installed between the catalytic filter 42 and the rear end of the heat dissipating tube 30. As described above, although three filters are provided in this specification, the number and location of the filters may vary depending on the situation.

The filter may be made by kneading a porous material mainly composed of silicon and calcining it at a high temperature. The filter may include a disk-shaped body and a plurality of communication paths formed in the body in the longitudinal direction so as to be installed inside the heat dissipating tube (30). Further, the filter may be a porous compressed activated carbon filter. The compressed activated carbon filter is prepared by providing a plurality of activated charcoals made of porous charcoal, compression-molding activated carbon at a pressure of about 50,000 tons in a disk-shaped or cylindrical compression mold frame, It can be baked to make a flat, cylindrical, porous, compressed activated carbon filter. In addition, the filter may be formed of a metal mesh. The metal net provided at the rear end of the combustion pipe 27 is a device in which harmful substances such as nitrogen oxide (NOx) and volatile organic compound (VOC) contained in the combustion gas are purified and discharged in a secondary manner, and a volatile organic compound Odor (petroleum odor) and noise can be reduced.

A silencer (50) is installed at an upper end of the heat dissipating tube (30). The silencer 50 includes a sound absorbing material 51 provided on the inner surface of the heat dissipating tube 30, a metal strut 52 provided on the inner surface of the sound absorbing material 51, And a spring 53. The sound absorbing material (51) absorbs the combustion gas and the noise generated in the heat radiation pipe (30). The metal net 52 protects the sound absorbing material 51 from the high temperature combustion gas. The coil spring 53 secures the sound absorbing material 51 and the metal net 52 and secures a passage through which the combustion gas can move.

A gas outlet 39 is formed at the rear end of the heat dissipating tube 30. The gas outlet 39 is formed of a plurality of through holes 39a formed in the lower surface of the heat dissipating tube 30. [ The combustion gas moved upward along the heat radiating pipe 30 is discharged to the inner space 11 of the case 10 through the through hole 39a of the gas discharge port 39. [ The combustion gas discharged into the case 10 is mixed with outside air and warm air, and is blown into the greenhouse or the greenhouse by the blower 40. Thus, the combustion gas ejected together with the warm air promotes the growth of crops by increasing the concentration of dioxins in the greenhouses and greenhouses.

Hereinafter, the operation of the agricultural-type tube warmer 1 according to the present invention will be described.

First, the combustor 20 sucks the fuel (white oil) stored in the fuel tank 26 and supplies it to the burner 24 at a constant pressure, and the burner 24 supplies the fuel as mist The fuel injected into the combustion tube 27 is ignited by an ignition plug and continuously burned in the combustion tube 27 to generate a flame and a high temperature combustion gas.

The combustion tube 27 is installed horizontally at a lower end of the inner space 11 of the case 10. The high-temperature combustion gas generated in the combustion tube (27) moves upward along the heat dissipating tube (30). The heat dissipating tube 30 is staggered in the inner space 11 of the case 10 and the heat of the flame and the combustion gas moving along the heat dissipating tube 30 dissipate the heat to the outside.

Meanwhile, when the combustor 20 is operated, the blower 40 is also operated. When the blower 40 is operated, external air flows into the internal space 11 through the open rear surface of the case 10. The air introduced into the internal space (11) is sucked into the blower (40) across the internal space (11) and blown forward. At this time, the outside air moving across the inner space 11 indirectly comes into direct contact with or discharges from the combustion tube 27 and the heat discharging tube 30 to perform heat exchange.

The blower 40 blows out the warm air in the inner space 11 to the outside. Particularly, in the present invention, since the heat-radiating tubes 30 are arranged in two rows in the internal space 11 and the space between the upper heat-radiating tubes 30a and the lower heat-radiating tubes 39b is densely arranged, heat exchange is smoothly performed in a short time . That is, the outside air introduced into the inner space is heat exchanged with the heat dissipating tube 30, and the temperature of the outside air is raised to about 5 to 10 ° C, and then the resin is sprayed into the greenhouse or the greenhouse.

In addition, the incomplete combustion gas is completely burned while the combustion gas moving upward along the heat pipe 30 passes through at least one filter. For example, the filter is heated by the high temperature combustion gas passing through the heat radiation pipe (30). Therefore, heat and steam passing through the filter have a higher temperature, and the harmful substances contained in the combustion gas are purified and the odor (petroleum odor) is reduced. A silencer (50) is installed at the rear end of the heat dissipating tube (30) to minimize the noise generated when the combustion gas is moved and discharged.

Finally, the combustion gas moved upward along the heat radiating pipe 30 is discharged to the inner space 11 through the through hole 39a. The combustion gas discharged into the case 10 is mixed with outside air and warm air, and is injected into the greenhouse or the green house.

As described above, in the agricultural-type tube heat fan 1 according to the present invention, the heat radiating tubes 30 provided in the inner space 11 of the case 10 are arranged in two rows, and the upper heat radiating tube 30a and the lower heat radiating tube 30b, So that heat exchange can be performed swiftly and smoothly.

In addition, the present invention can prevent the crops from being damaged by hot air because the outside air introduced into the inner space 11 of the case 10 is heated to about 5 to 10 ° C and then blown into the greenhouses or greenhouses .

In the foregoing, certain preferred embodiments of the present invention have been shown and described. It will be apparent to those skilled in the art that the present invention is not limited to the above-described embodiment, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention, It will be possible.

1: Tube heaters for agricultural use 10: Case
11: inner space 12: front plate
13: mixing space 15: reflector
20: combustor 24: burner
26: Fuel tank 27: Combustion pipe
30: heat pipe 39: gas outlet
40: blower 41, 42, 43: filter
50: Silencer

Claims (7)

BACKGROUND ART [0002] In an agricultural tube heat fan for supplying warm air to the inner space of a greenhouse or a greenhouse,
A box-shaped case having front and rear openings and an internal space of a predetermined size;
A combustor for burning a predetermined amount of oil and spouting a flame and a high temperature combustion gas into a combustion tube installed in an inner space of the case;
A heat dissipation pipe installed in a zigzag manner in an inner space of the case and discharging heat to the outside while moving a high temperature combustion gas generated in the combustion tube upward;
A blower for blowing outside air to the outside of the case, the blower blowing outside air to the inside of the case to make contact with the heat radiating pipe, Wow;
A reflector installed on an open rear side of the case to freely pass outside air sucked by the blower and to prevent heat radiated from the heat radiating pipe from being discharged to the outside of the case;
And a gas outlet provided at a rear end of the heat dissipating tube to discharge a combustion gas into an inner space of the case.
The method according to claim 1,
The heat dissipation tube has a cylindrical shape, a lower end thereof is connected to the combustion tube, a U-shaped connection tube is connected to both ends of the heat dissipation tube, and the upper and lower ends of the tube are spaced apart from each other by a predetermined distance. Wherein the heat exchanger is installed in two rows in front and rear.
3. The method of claim 2,
Wherein the heat radiating tube heats the outside air sucked by the blower to 5 to 10 캜.
The method according to claim 1,
Wherein the reflector is formed of a plurality of small inclined plates, and the plurality of inclined plates are inclined at predetermined angles up and down on the open rear surface of the case.
The method according to claim 1,
The blower is fixed to a front plate provided on an open front face of the case. The front plate is protruded forward so as to guide hot air inside the case to the blower, and a mixing space Wherein the heat exchanger is a heat exchanger.
6. The method according to any one of claims 1 to 5,
Wherein a filter for completely burning the incomplete combustion gas contained in the combustion gas is installed in the heat dissipation tube.
The method according to claim 6,
And a silencer including a sound absorbing material, a metal net, and a coil spring is provided at a rear end of the heat dissipating tube.

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