JP2002305992A - Heating method and heating apparatus of greenhouse for protected horticulture using high temperature type hot air heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method capable of heating a greenhouse of a scale larger than a medium scale having >=1,000 m<2> of the surface area by using small and few heaters without increasing number of conventional air heaters or using a hot-water heating apparatus. SOLUTION: The method comprises connecting one or more hot air ducts 13 each having a smaller diameter than a conventional one to an underground or overhead installation as a hot air heater 11 and extending the ducts from the heater 11 into a farm field 10 and connecting the terminal parts to a hot air blowing unit 14. A hot air blowing opening 14a is formed to the unit and a blower 15 is installed closely to the unit. The hot air blowing unit 14 and the blower 15 turn on when the hot air heater 11 turns on and the blower 15 sucks the air in the green house from an air intake opening 16 of the unit 14, mixes it with the hot air and blows out from a hot air supply opening 14a in the four directions of the green house to heat the green house. The numbers of the hot air heater 11 and the hot air blowing unit 14 are not limited respectively to one unit but increased depending on the scale of the green house.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for heating a greenhouse for greenhouse horticulture (hereinafter, referred to as a greenhouse) using a high-temperature hot-air heater, in particular, a medium-sized or larger greenhouse which generates and sucks in hot air. The present invention relates to a method for heating a greenhouse by mixing it with air in a greenhouse, forming hot air and blowing it out to the greenhouse, and an apparatus therefor.

[0002]

2. Description of the Related Art In a conventional greenhouse heating system, a hot air heater is arranged in a greenhouse, air in the greenhouse is sucked and heated, and an appropriate temperature hot air (40 ° C to 60 ° C) is directly blown into the greenhouse. Heating. The conventional greenhouse is 500 m ^2-
Most of them have an area of 2,000 m ² , but they have recently been increasing in size. In Japan, those with a size of 5,000 m ² or more are regarded as “large-scale greenhouses”. In recent years 1
ha~3ha ^{(10,000m 2} ~30,000m 2)
Greenhouses of the size are being constructed. Conventionally, a method has been frequently used in which a large number of ducts are spread around a floor or a fictitious air at 40 ° C. to 60 ° C. generated by one hot-air heater, and hot air is blown from the end of the duct.

[0003]

In a greenhouse for cultivating crops, when high-temperature hot air is blown onto the leaves of the crops, the leaves will die. Therefore, a large amount of warm air is required for a hot air heater, and the heater becomes large. Furthermore, in order to eliminate temperature unevenness, the main pipe of the duct that sends a large amount of warm air must be large in diameter and many branch pipes must be installed, so that a part of the cultivation area is split and workability is impaired . There are two ways to arrange the ducts: a method of laying the floor and a fictitious method. There is an individual difference in how the ducts are arranged, and the superiority of the duct arrangement affects the heating effect. Thus, the installation of the duct and the associated labor and space are simplified, the uniform diffusion of greenhouse air,
There is a need for averaging the growth of cultivated crops and improving the working space.

[0004] In addition to the above, there is a hot water heating system for heating a greenhouse. According to this method, a hot water generator (hot water boiler) is installed outside the field facility and a radiator tube is installed in the greenhouse. By arranging the radiator tube effectively to eliminate temperature unevenness, the cultivation area can be effectively increased. Available. Recently, this method has been adopted for large-scale greenhouses.However, hot water heating, especially hot water heating using a bare tube type radiator tube, often requires no daytime heating in areas where daytime sunlight can be used. However, a large amount of residual heat of the hot water remaining in the radiator tube causes a loss of heat energy.
On the other hand, for nighttime heating, hot water must be heated to a predetermined temperature to raise the temperature of the greenhouse, and preheating is required.
Further, the facility construction cost is expensive in the hot water system, and reaches three to four times as much as the system of the present application.

[0005]

Means for Solving the Problems The above-mentioned object is achieved by 1,000 objects.
One or more hot-air ducts for one or more high-temperature hot-air heaters capable of outputting hot air at 80 ° C. to 150 ° C. as a method for heating a medium- to large-scale greenhouse having a field of m ² or more. And a hot-air blowing unit is connected to the end of the hot-air duct, and the inside of the unit is mixed with hot air supplied through the hot-air duct at 40 ° C.
This problem is solved by providing a method of heating a greenhouse for greenhouse using a high-temperature hot air heater, which blows out hot air at a temperature of ℃ 60 ° C. to all sides of the greenhouse.

The above object is also achieved by connecting one end of a hot-air duct to a hot-air outlet of one or more high-temperature hot-air heaters installed in a field, buried underground in the field, and extending toward the inside of the field. A hot air blowing unit is placed at the end of a hot air duct that is exposed and opened from the surface of the field, and a blower placed inside the hot air blowing unit sucks air inside the greenhouse and sucks hot air supplied through the hot air duct to mix them. The problem is solved by providing a heating device for a greenhouse for facility horticulture using a high-temperature hot-air heater characterized by blowing out to all directions in the greenhouse.

The above object is further achieved by connecting one end of a hot-air duct to a hot-air outlet of one or more high-temperature hot-air heaters installed in a field, installed imaginarily in a greenhouse, and extending toward the inside of the field. A hot air blowing unit is placed at the end of the hot air duct, and a blower placed inside the hot air blowing unit draws in the air inside the greenhouse and also sucks in the hot air supplied through the hot air duct, mixes them, and turns it around the greenhouse. The problem is solved by providing a heating device for a greenhouse for greenhouse using a high-temperature hot-air heater characterized by blowing.

The above object is further achieved by exposing a hot air outlet at a front end of a hot air duct extending from a high-temperature hot air heater to a center of a hot air blow-out unit body beyond a field surface and opening the hot air outlet at an upper end of the body. A hot air outlet is formed, a blower is disposed below the outlet, an indoor air inlet is formed in the body, and the blower sucks warm indoor air from the indoor air inlet and is supplied from a hot air outlet. This problem is solved by providing a heating device for a greenhouse for greenhouse using a high-temperature hot-air heater described in the paragraph 0006, in which the hot air is sucked and mixed, and the hot air is blown out from the hot-air outlet to the four sides of the greenhouse. .

The above object is further achieved by erecting the end of the hot air duct extending from the high-temperature hot air heater and connecting the upper end of the erect hot air duct extending above the field surface to the hot air blowing unit. Then, a blower is arranged inside the hot air blowing unit, and the hot air supplied from the hot air outlet at the upper end of the upright hot air duct is diffused by the diffuser, and diffuses with the greenhouse air sucked by the blower from the indoor air intake port. The hot air is mixed with the hot air, and the air-fuel mixture is turned into hot air by a blower, and is blown out from the hot air outlet to four sides of the greenhouse.
The problem is solved by providing a heating device for a greenhouse for institutional horticulture using the high-temperature hot air heater described in the column.

The above object is further achieved by connecting a hot air outlet at an end of a hot air duct extending from a high-temperature hot air heater to a hot air blowing unit, the hot air blowing unit having an indoor air inlet at an upper end and a warm air outlet at a lower end. An air outlet is formed, suspended in the hollow of the greenhouse, and a blower is arranged inside the hot air blowout unit. The blower draws in the greenhouse air from the indoor air inlet and sucks the hot air supplied from the hot air outlet. The problem is solved by providing a heating device for a greenhouse for greenhouse using a high-temperature type hot-air heater described in the paragraph [0007], wherein the hot-air outlet is mixed and blown out from the hot-air outlet into the greenhouse.

The above object is further achieved by erecting an end of a hot air duct extending from a high-temperature hot air heater and connecting a hot air outlet at a lower end of the upright hot air duct extending downward toward a field to a hot air blowing unit. Connected to form a warm air outlet at the upper end of the body of the warm air blow unit, a blower is arranged below the blow port, and an indoor air suction port is formed in the body, and the blower blows indoor air into the indoor air. A greenhouse for greenhouse and horticulture using a high-temperature hot-air heater described in 0007, wherein the hot air supplied from the hot-air outlet is sucked and mixed with the hot air supplied from the hot-air outlet, and the hot air is blown out from the hot-air outlet into the greenhouse. It is solved by providing a heating device.

[0012]

In the present invention, high-temperature (80 ° C. to 150 ° C.) hot air is generated using a high-temperature hot air heater to heat a medium to large-scale greenhouse of 1,000 m ² or more,
This hot air has a smaller diameter than the conventional duct, for example, a diameter of 20 mm.
Hot air is supplied to the hot air blowing unit at high speed through a hot air duct buried underground or imaginarily installed about 0 mm, and the supplied hot air is mixed with greenhouse air sucked in by a blower arranged in the unit to generate hot air ( 40 ° C ~
(60 ° C.) and blown out to the four sides of the greenhouse by the blower to heat the greenhouse.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a first embodiment of the present invention in which one high-temperature hot-air heater and one hot-air blowing unit are installed at the outer edge of a field. In FIG. 20m ×
It covers a 50 m (1,000 m ² ) field. 1
0a is a field, 11 is a hot air blowing temperature of 80 ° C to 150 ° C.
C., a high-temperature hot-air heater set to ° C. (hereinafter, referred to as a hot-air heater), 12 is a hot-air outlet, 13 is a hot-air duct (hereinafter, referred to as a duct) buried underground or installed overhead, and 14 is an outlet. A swirling type or fixed type hot air blowing unit (hereinafter, referred to as a blowing unit), an arrow i indicates a direction of air intake in a greenhouse, an arrow ii indicates a direction of blowing hot air, and an arrow A indicates a direction of hot air of 80 ° C to 150 ° C. Each shows the direction of travel. Warm air refers to air at 40 ° C to 60 ° C. The hot air heater 11 is disposed in contact with the field 10 and the duct 13 is connected to the field 10.
Although it extends inward and connects the blowing unit 14 to its tip, the arrangement positions of the hot air heater 11 and the duct 13 are not limited to the positions shown in the figure. The amount of hot air is greatly reduced to 1/2 to 1/4 that of conventional hot air heaters,
Even if the high-temperature hot air expands, the expansion amount is + 8% to 35%.
%, The diameter of the duct 13 becomes extremely small as compared with the conventional system, and the blowing power is greatly reduced. On this scale, the duct 13 may be a refractible one having a diameter of approximately 200 mm. The blowing unit 14 sucks air in the greenhouse as shown by an arrow i and mixes it with hot air of 80 ° C. to 150 ° C.
As shown by i, it becomes hot air of 40 ° C. to 60 ° C. and blows out effectively to all sides of the greenhouse.

In the second embodiment shown in the plan view of FIG. 2, two hot-air heaters 11 in a large-area greenhouse and one blow-off unit 14 are arranged for each, and FIG. The same parts as those shown are denoted by the same reference numerals. In the second embodiment, when the greenhouse 10 is longer in the lateral direction than that shown in FIG. 1 and a larger amount of hot air is required, the heating of the greenhouse is sufficiently performed using two hot air heaters 11. Can be done.

FIG. 3 is a front sectional view showing an installation state of the floor-standing type blow-out unit 14. In FIG. 3, the same parts as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and 13a is a hot air outlet. 14b is the body of the blowing unit, 15 is a blower, 1
Reference numeral 6 denotes an indoor air suction port opened in the body 14b. Hot air is blown out from the body 14b as shown by the white arrow.
Sent inside. A blower 15 is provided at the upper center of the blowout unit body 14b.
An indoor air suction port 16 is opened at a position above the hot air outlet 13a below 4b. The hot air outlet 13
In the case of the fifth embodiment shown in FIG. 7, for example, in the case of the fifth embodiment shown in FIG.
Open at the center of b. When the hot air heater 11 is turned on and the blower 15 is turned on, the hot air rising in the white arrow direction through the hot air outlet 13a and the greenhouse air sucked in the arrow i direction from the indoor air inlet 16 in the blowout unit 14 The mixed air becomes hot air and is blown out in all directions in the direction of the arrow ii from the hot air outlet 14a.

FIG. 3 is a front sectional view of the third embodiment shown in FIG.
The same parts as those shown in FIG. 3 are denoted by the same reference numerals. Heating machine 1
The air is sucked into the inside 1, is heated and becomes hot air, and is sent to the blow-out unit 14 through the duct 13 buried underground in the direction of arrow C. The amount of hot air is ２〜 to に 対 し of the amount of warm air, and the blowing power is greatly reduced. Furthermore, the uniform distribution of the warm air in the greenhouse 10 is achieved, and effective heating is achieved.

The blow-out unit 14 may be of an imaginary type shown in FIG. In FIG. 5, the same parts as those shown in FIGS.
b denotes an upright hot air duct (hereinafter, referred to as an upright duct) which is connected to the duct 13 and rises out of the field surface 10a and is connected to the blowing unit 14, and arrow iii indicates a direction in which the hot air flows. Also in the example of FIG. 5, the hot air heater 11 and the blowing unit 14 are provided at the same positions as in the first embodiment. In the example of FIG. 5, the upright duct 13b extends from the surface of the field 10a to a height of approximately 1.5 m to 2.0 m, and the hot air rises up to that height as indicated by an arrow iii. Blowing unit 1 by blower 15
The greenhouse air is sucked in from the indoor air suction port 16 opened below 4 as shown by an arrow i, and the sucked greenhouse air rises through the duct 13b as shown by an arrow iii and is diffused by the diffuser 17. Blower 1 mixed with hot air
5, the hot air is blown out from the hot air outlet 14a to the inside of the greenhouse 10 as shown by an arrow ii.

A fourth embodiment using a duct 13 and a blowing unit 14 in which a hot air heater 11 is placed in a greenhouse 10 and suspended in a suspended manner is shown in a front sectional view of FIG.
The same parts as those shown in FIGS. 1 to 5 are denoted by the same reference numerals.
In this example, the hot air blown out of the hot air outlet 12 of the hot air heater 11 is sent through a duct 13 to an imaginary blow unit 14 as shown by an arrow D. The blower unit 14 has a blower 15 disposed therein, an indoor air inlet 16 on the upper surface, a hot air outlet 13a on the upper side, and a warm air outlet 14a on the lower side of the blower 15.
The blower 15 mixes the air in the greenhouse 10 sucked from the indoor air suction port 16 as shown by an arrow i, and hot air supplied from a hot air outlet 13a through a duct 13 as shown by an arrow D, and blows out hot air. It is blown out from the mouth 14a in all directions in the greenhouse 10 in the direction of arrow ii.

FIG. 7 shows a fifth embodiment in which the blowout unit 14 is a floor-standing type and the duct 13 is installed overhead.
6 are denoted by the same reference numerals. The hot air heater 11 is disposed in contact with the outer edge of the greenhouse 10, and
A part of the air inside is sucked into the hot air heater 11 and heated to become hot air, which is sent to the blowing unit 14 through the duct 13 in the direction of arrow D. Outlet unit body 14b
The blower 15 arranged at the upper center of the air blower sucks the air inside the greenhouse 10 in the direction of the arrow i from the indoor air suction port 16 opening on the side surface of the blowout unit body 14b, and removes the hot air supplied from the hot air outlet 13a in the white arrow direction. Into the greenhouse 10 as shown by the arrow ii from the hot air outlet 14a.

As in the sixth embodiment shown in a plan view in FIG. 8, three blow-off units 14 can be provided for one hot-air heater 11. In FIG. 8, the same portions as those shown in FIGS. 1 to 7 are denoted by the same reference numerals, three hot air outlets 12 are provided, and ducts 13 are connected to the respective hot air outlets 12. The blowout unit 14 has a blowout port of a swirling type or a fixed type. A duct 13 extending from the central hot air outlet 12 of the hot air heater 11 is connected to the central outlet unit 14 in the same manner as in the first embodiment, but hot air outlets at both ends of the hot air heater 11 are provided. Ducts 13 connected to 12 extend from the hot air heater 11 along the field 10a, and are connected to blow-off units 14, respectively.

FIG. 9 is a plan view of a seventh embodiment of the present invention.
The same parts as those shown in FIG. 8 are denoted by the same reference numerals. Field 1
2a, two ducts 13 extend straight from the two hot air outlets 12 of the hot air heater 11 disposed near the outer edge of the hot air heater 11 toward the center of the field 10a, and then bend substantially at right angles and extend in opposite directions. At the end of the field 10a, it comes out of the surface of the field 10a and is connected to the blowing unit 14. This embodiment is advantageous when the field 10a is long both horizontally and vertically.

FIG. 10 is a plan view of an eighth embodiment of the present invention, in which the same reference numerals as those shown in FIGS. 1 to 9 denote the same parts. In this embodiment, three ducts 13 are connected to the three hot air outlets 12 of the hot air heater 11, and the two ducts 13 at both ends extend along the outer edge of the field 10a in opposite directions, and then extend at substantially right angles. And is extended to the center of the field 10a and connected to the blowing unit 14 at each end,
The duct 13 connected to the central hot air outlet 12 extends to almost the center of the field 10a and is connected to the outlet unit 14 there. This embodiment also has a large-area field 10a.
It is effective in the case of.

FIG. 11 is a plan view of a ninth embodiment of the present invention, in which the same reference numerals as those shown in FIGS. 1 to 10 denote the same parts. This embodiment uses two hot air heaters 11 as shown in FIG.
This is a modification of the seventh embodiment, and is effective when the field 10a is horizontally long and has a large area.

FIG. 12 is a plan view of a tenth embodiment of the present invention.
In the figure, the same parts as those shown in FIGS. 1 to 11 are denoted by the same reference numerals. In this embodiment, the hot air heater 11 is disposed substantially in the center of the field 10a, and two ducts 13 extend from the hot air heater 11 in opposite directions along the horizontal center line of the field 10a. The blowing unit 14 is connected. This is a modification of the embodiment of FIG. 2, and is effective when the field 10a is horizontally long and has a large area.

FIG. 13 is a plan view of an eleventh embodiment of the present invention.
1 to 12 are denoted by the same reference numerals. This embodiment is obtained by arranging two embodiments shown in FIG. 12 along the horizontal center line of the field 10a, and is effective when the field 10a is long in the horizontal direction and its area is large.

FIG. 14 is a plan view of a twelfth embodiment of the present invention.
In the figure, the same parts as those shown in FIGS. 1 to 13 are denoted by the same reference numerals. This embodiment is a modification of the eighth embodiment shown in FIG. 10 using two hot air heaters 11, and is effective when the field 10a has a large area that is long both horizontally and vertically.

In the use of the first embodiment of the present invention, when the temperature in the greenhouse is controlled at 15 ° C., the number of hot air heaters 11 is: 1 unit; heat output: 86,000 kcal / h; air volume: 50 m ³ / min = Assuming 3,000 m ³ / h, hot air temperature: 100 ° C. + 15 ° C. = 115 ° C. Regarding the hot air supply duct 13, diameter of the hot air duct 13: 400 mm Regarding the hot air blowing unit 14 Number of units: 1 indoor air intake: 75 m ³ When the air flow rate was set to 125 m ³ / min, the temperature of the air blown from the blowing unit 14 was expressed by the following equation.

[0028]

(Equation 1)

In the use of the sixth embodiment of the present invention, assuming that the inside of the greenhouse 10 is controlled at 20 ° C., the number of hot air heaters 11 is: 1 Hot air outlet 12: 3 Heat output: 86,000 kcal / h Assuming air volume: 50 m ³ / min = 3000 m ³ / h Hot air temperature: 100 ° C. + 20 ° C. = 120 ° C. Hot air duct 13 Hot air duct: 3 Air volume: 16.6 m ³ / min (per hot air duct) Hot air The diameter of the duct 13: 250 mm With respect to the hot air blowing unit 14, the number of units: 3 indoor suction air temperature: 20 ° C. The hot air blowing air volume: 60 m ³ / min (per hot air blowing unit), the hot air blowing temperature: 47.7 ° C. was obtained.

[0030]

As described above, according to the present invention, (1) the air volume of the high-temperature hot air heater is less than half the air volume of the conventional hot air heater, so that the size can be reduced. (2) Since the indoor air is sucked, the heater according to the present invention can be installed at one corner of or adjacent to the greenhouse, and can be downsized, so that it can be easily installed in the greenhouse. (3) The indoor air is taken in to generate high-temperature hot air, which is sent to the hot-air blowing unit through a duct, so that the hot-air blowing temperature is 80 ° C. for the same heat output of the conventional type (40 ° C. to 60 ° C.).
１５０150 ° C. (4) Since the hot air duct has a small air volume, the duct may be thinner than the conventional one. (5) Although the surface of the duct becomes hot, it has a small diameter and can be shortened, the duct is not obstructed, the cultivation area can be effectively used, and the cultivation workability in the field is improved. (6) When two to several hot air blowout units are installed according to the cultivation area and the capacity of the hot air heater, the hot air sent from the hot air heater and the indoor air are mixed and the appropriate temperature air is introduced into the greenhouse. The hot air blowing unit can be freely arranged depending on the cultivated crop and the cultivation method. (7) The hot air from the hot air blowing unit is obtained by simply mixing the hot air and the room air, and does not require an expensive heat exchange unit, and can be manufactured at extremely low cost. (8) By arranging models with the capacity according to the capacity such as floor-mounted type and suspended type, it can be used for any cultivation facilities (deformed greenhouse, greenhouse with height difference, greenhouse with different temperature management, etc.). (9) The conventional hot air heater has a maximum of about 200,000 kcal / h in consideration of the ventilation duct, but the hot air heater has a small air flow, and therefore has a flow rate of 500,000 kcal / h.
Capability can be increased to about kcal / h.
For a large-scale greenhouse, the hot air heater is 500,000 kca
1 / h can be arranged as two units, and the warm air blowing units can be arranged as ten units. The effect is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a plan view of a second embodiment of the present invention.

FIG. 3 is a front sectional view of an arrangement of a hot air blowing unit and a hot air duct used in the embodiment of FIG. 1;

FIG. 4 is a front sectional view of a third embodiment of the present invention.

FIG. 5 is a sectional view of an aerial installation type hot air blowing unit used in the first embodiment of the present invention.

FIG. 6 is a front sectional view of a fourth embodiment of the present invention.

FIG. 7 is a plan view of a fifth embodiment of the present invention.

FIG. 8 is a plan view of a sixth embodiment of the present invention.

FIG. 9 is a plan view of a seventh embodiment of the present invention.

FIG. 10 is a plan view of an eighth embodiment of the present invention.

FIG. 11 is a plan view of a ninth embodiment of the present invention.

FIG. 12 is a plan view of a tenth embodiment of the present invention.

FIG. 13 is a plan view of an eleventh embodiment of the present invention.

FIG. 14 is a plan view of a twelfth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Greenhouse 10a Field 10b Heater room 11 Hot air heater 12 Hot air outlet 13 Hot air duct 13a Hot air outlet 13b Upright hot air duct 14 Hot air blowing unit 14a Hot air outlet 14b Hot air blowing unit body 15 Blower 16 Indoor air suction Mouth 17 diffuser

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B029 PA05 SB08 SB09 3L071 AA01 AB06 AC01 AD02

Claims (10)

[Claims] 1. A field having an area of 1,000 m ² or more (10
a) a method for heating a medium to large-scale greenhouse (10) having at least one hot air heater (11) capable of outputting hot air at 80 ° C. to 150 ° C. A duct (13) is connected, and a hot air blowing unit (14) is connected to the end of the hot air duct (13).
The air inside the greenhouse (10) into which the air is sucked and the hot air supplied through the hot air duct (13) are mixed, and the temperature is set to 40 ° C.
A method for heating a greenhouse for facility horticulture using a high-temperature hot-air heater, wherein the greenhouse (10) is blown out as hot air at 60 ° C. in all directions. 2. A high-temperature hot-air heater (11) is provided in a field (10).
2. The method for heating a greenhouse for greenhouse horticulture using a high-temperature hot air heater according to claim 1, wherein the greenhouse is installed in a). 3. A high-temperature hot-air heater (11) is provided in a field (10).
The method for heating a greenhouse for greenhouse horticulture using a high-temperature hot air heater according to claim 1, wherein the method is arranged along the outer edge of (a). 4. One end of a hot-air duct (13) is connected to a hot-air outlet (12) of one or more high-temperature hot-air heaters (11) installed in a field (10a). A hot air duct (13) buried underground and extending toward the inside of the field (10a) and exposed from the surface of the field (10a) and opened.
A hot air blowing unit (14) is arranged at the end of the hot air blowing unit (14), and a blower (15) arranged in the hot air blowing unit (14) sucks air in the greenhouse (10) and simultaneously draws the hot air duct (1).
3) A heating device for a greenhouse for horticulture using a high-temperature hot air heater, wherein hot air supplied through 3) is sucked, mixed and blown out in all directions in the greenhouse (10). 5. One end of a hot-air duct (13) is connected to a hot-air outlet (12) of one or more high-temperature hot-air heaters (11) installed in a field (10a). A blower (15) in which a hot air blowing unit (14) is arranged at the tip of a hot air duct (13) which is installed overhead in the field (10a) and extends toward the inside of the field (10a), and is arranged in the hot air blowing unit (14). Uses a high-temperature hot-air heater characterized by sucking air in the greenhouse (10), sucking hot air supplied through the hot-air duct (13), mixing them, and blowing them out in the greenhouse (10). Heating system for greenhouse for greenhouse. 6. A hot-air duct (13) extending from the high-temperature hot-air heater (11) has a hot-air outlet (13b) at the center of the hot-air blowing unit body (14b) beyond the surface of the field (10a). 13a) is exposed and opened, and a warm air outlet (14a) is formed at the upper end of the body (14b).
a), a blower (15) is arranged below the body (14).
b) an indoor air inlet (16) is formed in the blower (1).
5) The air in the greenhouse (10) and the indoor air inlet (16)
And the hot air supplied from the hot air outlet (13a), and mixes them.
The heating device for a greenhouse for greenhouse using a high-temperature hot-air heater according to claim 4, wherein the heating device is configured to blow out from 4a) to the inside of the greenhouse (10). 7. An upright hot air duct (13b) extending from a high-temperature hot air heater (11) and an upright hot air duct (13b) extending upward beyond the surface of the field (10a). The end is connected to the hot air blowing unit (14), and a blower (15) is arranged inside the hot air blowing unit (14), and supplied from the hot air outlet (13a) at the upper end of the upright hot air duct (13b). The diffused hot air is diffused by the diffuser (17) and blown from the indoor air inlet (16) to the blower (15).
The air in the greenhouse (10) sucked in by the above is mixed with the diffused hot air, and the air-fuel mixture becomes hot air by the blower (15) and is blown out from the hot air outlet (14a) to the inside of the greenhouse (10). A heating apparatus for a greenhouse for greenhouse using the high-temperature hot air heater according to claim 4. 8. A hot air outlet (13a) at an end of a hot air duct (13) extending from the high-temperature hot air heater (11) is connected to a hot air blowing unit (14). ) Has an indoor air inlet (16) at the upper end and a warm air outlet (14a) at the lower end, and is suspended in the hollow of the greenhouse (10), and a blower (15) is provided inside the warm air blow unit (14). ), And the blower (15) is in the greenhouse (10)
The internal air is sucked from the indoor air inlet (16) and the hot air supplied from the hot air outlet (13a) is mixed therewith, and then mixed with the hot air from the hot air outlet (14a).
The heating apparatus for a greenhouse for facility horticulture using the high-temperature hot-air heater according to claim 5, wherein 0) the air is blown out to all sides. 9. A lower end of an upright hot air duct (13b) extending upright from an end of a hot air duct (13) extending from the high-temperature hot air heater (11) and extending downward toward the field (10a). The hot air outlet (13a) of the hot air blowout unit (1
4), a hot air outlet (14a) is formed at the upper end of the warm air outlet unit body (14b), and the outlet (1) is formed.
4a) A blower (15) is arranged below and the body (14)
b) an indoor air inlet (16) is formed in the blower (1).
5) The air in the greenhouse (10) and the indoor air inlet (16)
And the hot air supplied from the hot air outlet (13a), and mixes them.
The heating device for a greenhouse for greenhouse using a high-temperature hot air heater according to claim 5, wherein the heating device is configured to blow out from 4a) to the inside of the greenhouse (10). 10. A hot air outlet (1) of a high-temperature hot air heater (11) having two or more hot air outlets (12).
2) connecting one end of a hot air duct (13) to each of the hot air ducts (13), and disposing a hot air blowing unit (14) at an end portion of each hot air duct (13) extending toward the inside of the greenhouse (10); A blower (15) arranged in the hot air blowing unit (14) sucks the air in the greenhouse (10) and also sucks the hot air supplied through the hot air duct (13) to mix them, and the hot air outlet (14a). From the greenhouse (1
0) The air is blown in all four directions.
A heating device for a greenhouse for facility horticulture using the high-temperature hot-air heater according to any one of the above.