JPH0630663A - Suction/exhaust structure for warmer in greenhouse for raising - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the securing of piping space and preheat the intake air by exchanging heat with the exhaust gas to save fuel consumption in the heating device. [Structure] An exhaust pipe 50 of an emergency heating device 39 is arranged inside an intake pipe 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake / exhaust structure of a heating device in a cultivation greenhouse for cultivating vegetables, fruits, flowers and the like.

[0002]

BACKGROUND OF THE INVENTION Generally,
This seed cultivation greenhouse is formed by covering a greenhouse frame composed of a frame member such as a column member and a palm member with a translucent member such as a resin film, and using a heating device in the greenhouse. Although the temperature will be controlled, in this case, it is necessary to install an intake pipe and an exhaust pipe of the heating device in the greenhouse. In the past, however, it was not easy to secure a piping space because both pipes were separately piped, and in cold regions, the temperature difference between the greenhouse and the outside air was large, so the inhaled outside air was kept at an appropriate temperature. An increase in fuel cost is a problem because it requires a considerable amount of heating energy for heating.

[0003]

SUMMARY OF THE INVENTION The present invention was devised with the object of providing an intake / exhaust structure for a heating device in a greenhouse for cultivation, which can eliminate these drawbacks in view of the above-mentioned circumstances. In the greenhouse for temperature controlled by a heating device, one pipe is arranged in the other pipe in order to pipe the intake pipe and the exhaust pipe of the heating device. It is a thing. Further, according to the present invention, it is possible to easily secure the piping space by this configuration and preheat the intake air by exchanging heat with the exhaust gas to save the fuel consumption amount in the heating device. It is the one.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawing, 1 is a greenhouse for cultivation, and the greenhouse 1 for cultivation is provided with a pair of side columns 2 standing between the pair of side columns 2 and standing upright at a predetermined interval in the ridge direction (east-west direction). A stud 3 standing upright, a pallet 4 installed in an inclined shape between the stud 3 and the side pillar 2, a purlin 5 erected in an orthogonal direction between the pallets 4, and a cross between the purlins 5 Rafters 6 erected in the direction, brackets 7 protruding outward from each of the side columns 2,
A greenhouse frame formed by a beam 8 erected in the direction of the ridge between the front ends of the brackets 7 and an outer pillar 9 erected in the vertical direction between the beams 8 is made of a translucent resin. Although the cultivation room is formed inside by covering with the film 10, the cultivation greenhouse 1 of the present invention is formed to extend in the ridge direction, and both ends of which the three surfaces are exposed to the outside air are for heat insulation. While the attached room 1a is provided, a plurality of doorways 1b are provided on both side surfaces at predetermined intervals.

Reference numeral 11 denotes a film receiving material integrally laid on the outer surface of the rafter 6, the outer pillar 9 or the like. The film receiving material 11 is a fixing piece fixed to the rafter 6, the outer pillar 9 or the like. 11a
And the groove piece 11b functioning as a bisque are integrally formed. That is, the film pressing member 12 is attached to the film receiving member 11 via a screw (not shown).
The film pressing member 12 can be attached integrally, and the resin film 10 can be sandwiched and held between the film receiving member 11 and the film pressing member 11.

Further, 13 is a film protection member provided at a connecting corner portion of the rafter 6 and the outer pillar 9,
The film protection member 13 includes a contact piece 13a that contacts the resin film 10 and a groove piece 11b of the film receiving material 11.
In order to integrally have a fitting piece 13b capable of fitting in a retaining shape, the fitting piece 13b is provided with a notch 13c for allowing the film protection member 13 to be bent. It is formed continuously at a predetermined interval.
That is, the film protecting member 13 is attached in a curved shape so as to connect the film receiving members 11 attached to both members at the connecting corner portion of the rafter 6 and the outer column 9, and by the curved contact piece 13a. By supporting and supporting the resin film 10, it is possible to prevent the resin film 10 from being damaged at the edges of the rafters 6 and the outer columns 9.

Reference numeral 14 is a side window provided on the side surface of the greenhouse 1 for cultivation, and the side window 14 is a frame member 14 on the upper, lower, left and right sides.
The resin film 14b is stretched and formed on the window frame framed by a, and the upper end is supported swingably back and forth on the beam 8 via the hinge 14c. The window opening 1c of the greenhouse 1 can be opened and closed.
A seal member 14d made of a rubber elastic material is attached to the window frame contact surface of 4a.

Furthermore, reference numeral 15 denotes a dew condensation receiving material provided on the inner side of the side window 14, and the dew condensation receiving material 15 is formed of a translucent resin film, and its upper end portion. Is suspended in a hanging shape by a suspending wire 16 that is inserted through the bag-shaped wire insertion portion 15a, while the lower end is
The lower end portion of the window opening 1c is integrally connected to the exterior resin film 10. That is, the condensation receiving material 15
Forms an inclined surface reaching the outer edge of the lower end portion of the window opening 1c at the inner position of the side window 14, and the inclined surface receives and receives dew condensation falling from the ceiling surface or the inner surface of the greenhouse 1 for cultivation. The dew condensation is tilted and guided to the tilted lower end space which is sealed by the sealing member 14d. Then, the dew condensation accumulated in the space at the lower end of the slope is discharged to the outside of the greenhouse when the side window 14 is opened. In addition, 17
Is a resin plate formed in a bent shape so as to connect the dew condensation receiving material 15 and the resin film 10.

On the other hand, reference numeral 18 denotes a guide rail which is arranged in parallel in the cultivating greenhouse 1 at a predetermined interval in the ridge direction. The guide rail 18 is a vertical line along the inner surface of the greenhouse at a predetermined interval. Each of the guide rails is composed of a rail portion 19, an inclined rail portion 20 along a ceiling surface at a predetermined distance, and an R-shaped bent rail portion 21 connecting the rail portions 19 and 20. A pipe-shaped vertical mount 22 along the guide rail 18 is integrally provided on the outer peripheral surface of 18 via an L-shaped metal fitting 23. Further, a plurality of horizontal mounts facing the ridge direction are provided between the parallel vertical mounts 22. 24 are installed in parallel.

Further, 25 is an air curtain stretched in the cultivation greenhouse 1. The air curtain 25 includes a ceiling curtain portion 25a for covering the vertical mount 22 and the horizontal mount 24 from above, and the ceiling curtain portion. 25a and a gable curtain portion 25b that hangs from both sides to form a gable surface, and when the curtain is filled with air, a cultivation room is formed between the inner surface of the greenhouse and the outer surface of the curtain. In this invention, a plurality of air curtains 25 are arranged in series at predetermined intervals in the ridge direction in parallel with each other. Thus, the cultivation greenhouse 1 having a vast cultivation space is configured to be divided into a plurality of independent cultivation rooms.

Further, the air curtain 25 is formed in a north-south split type, and an opening / closing drive wire (not shown) is connected to a tip end which is a mating top. Then, each air curtain 25 is transformed into a closed posture that rises along the vertical frame 22 and an open posture that is folded and stored at the lower end of the vertical frame 22 based on the forward / reverse drive of the opening / closing drive wire. ing.

By the way, since the contact position of the air curtain 25 with the stud 3 is the closing limit position, the stud 3
Although a gap will be formed between them, this embodiment has means for closing the gap. That is, the first means is the tip pipe 26 of the north side air curtain 25.
In addition, avoid the abutment position of the studs 3
7, the extension pipe 2 is attached to the air curtain 25.
The extension portion 25c stretched along 7 is formed, and the extension portion 25c is superposed on the tip of the south side air curtain 25 so as to close the gap between the studs 3.
Furthermore, the second means is for closing the gap between the stud 3 and the air curtain 25, and is provided by a translucent closing plate 28 provided in an umbrella shape at the upper end of the stud 3. Composed. That is, the closing plate 28 closes the gap by contacting the lower edges of the north and south sides with the lower surface of each air curtain 25,
Further, a mountain-shaped bent plate portion 28a along the slope of each air curtain 25 is provided at the end edge on the east-west side so as to project upward.
Since both the bent plate portions 28a contact the air curtains 25, the studs 3 and the air curtains 25 are closed without any gap.

Further, 29 is a sheet curtain which is stretched so as to face the lower surface of the ceiling curtain portion 25a of the air curtain 25, and the sheet curtain 29 is formed of a heat insulating curtain or a light shielding curtain. However, in this example, the hanging member 30 is provided at a predetermined interval in the vertical direction.
Are connected, and these suspension members 30 are connected to the guide rail 1
The seat curtain 29 is configured to open and close by being guided up and down at 8. That is, the above-mentioned vertical rail portion 19, the inclined rail portion 20, and the bent rail portion 21 which constitute the guide rail 18 are formed in a substantially V-shaped cross section, and
Rail pieces 19b, 20b protruding inward are provided at the lower ends of the two leg portions 19a, 20a, 21a so as to roll-guide a pair of pulleys 30a provided at the upper end of the suspension member 30.
21b.

Furthermore, 31 is an opening / closing drive wire for connecting the bracket portions 30b of the suspension member 30 in series, and the opening / closing drive wire 31 is attached to a driven pulley 32 provided at the upper end of the guide rail 18. It is formed to be endless so as to be suspended and folded back, and to be suspended by a drive pulley 34 of a drive device (not shown) via a driven pulley 33 provided at a lower end portion of the guide rail 18. That is, the double opening / closing drive wire 31 moves in the opposite directions based on the forward and reverse drive of the drive device to open and close the seat curtain 29. By the way, the folding-back side of the opening / closing drive wire 31 has the hanging member 3
Since it is not connected to 0, it hangs down without following the guide rail 18. Therefore, a wire insertion path 21c is formed in the bent rail portion 21 to support the intermediate portion of the opening / closing drive wire 31 in an insertion shape. However, in the present embodiment, the guide rollers 35 are arranged in parallel at the bottom of the wire insertion path 21c along the wire insertion direction. That is, by rollingly guiding the open / close drive wire 31 by the guide roller 35, the open / close drive wire 31 is prevented from slidingly contacting the inner peripheral surface of the bent rail portion 21.

On the other hand, 36 is a floor unit provided for each cultivation room, and the upper surface of the floor unit 36 is formed in a step-like manner so that it becomes higher gradually toward the north side, and there are two rows of cultivation shelves at each stage. 37 is installed. That is, it is configured to sufficiently secure the sunshine of the cultivation shelf 37 installed on the north side,
Furthermore, at the east and west ends of the floor unit 36, the heat exchanger 3
8, a recess 36a for installing 8 is formed, while an emergency heater 39, an air curtain blower 40,
A recess 36b for installing the carbon dioxide generator 41, the water supply pump 42, etc. is formed, and further, a hollow pipe space 3 for arranging each pipe is provided on the lower surface of the floor of the floor unit 36.
6c is formed.

The heat exchanger 38 performs heat exchange between the hot spring water supplied through the water supply pipe 43 and the inside air of the cultivation room sucked by the fan 38a, and is heated by the heat exchange. After passing through the buried duct 44, the inside air is discharged into the cultivation room from the airflow ducts 45 arranged in parallel along each cultivation shelf 37 to control the temperature of the cultivation room. Reference numeral 46 is a drainage pipe for draining the hot spring water that has undergone heat exchange.

Further, the emergency heater 39 mixes the outside air sucked through the intake pipe 47 and the inside air sucked by the fan 39a, and then heats it by combustion to heat the heated air. After passing through the buried duct 48,
The exhaust pipe is configured so as to discharge the combustion exhaust gas from the exhaust pipe 50 to the outside while discharging the air into the cultivation chamber from the air duct 49 arranged in parallel with the air duct 44 of the heat exchanger 38 to heat the cultivation chamber. Reference numeral 50 is piped so as to reach the outside of the room via the inside of the intake pipe 47. That is, by forming the intake pipe 47 and the exhaust pipe 50 into a double pipe, it becomes easy to secure a piping space, and the outside air sucked by the intake pipe 47 is exhausted to high temperature. Preheating is performed based on heat exchange to save fuel consumption in the emergency heater 39.

In addition, the air curtain blower 40 has a ceiling curtain portion of the air curtain 25 via a blower pipe 51 which faces the north-south direction and a blower pipe 52 which faces the east-west direction. It is configured to supply the filling air by pressure to 25a and the gable curtain portion 25b.

Further, the carbon dioxide generator 41 sucks the outside air through the intake duct 53 and generates carbon dioxide by means of combustion or the like. The generated carbon dioxide gas is blown by the blower 54.
After passing through, the air is discharged into the cultivation room from the Kazama duct 55 that is laid between the studs 3 in a erected manner.
Since 1 is installed in 3 rooms at a ratio of 1 unit, buried duct 5
Carbon dioxide gas is also supplied to the adjacent cultivation room via 6.

Further, the water supply pump 42 sucks stored water from a water supply tank 58 which always stores an appropriate amount of water, and supplies the sucked water to a water supply pipe 59 for automatic watering and a water supply pipe 60 for manual watering. Although water is supplied by pressure, the water supply pump 42 is installed in every three rooms, and therefore water is also supplied to the adjacent cultivation room via the buried pipe 61. By the way, the water supply tank 57 is buried in the ground below the floor. For this reason, the temperature of the water stored in the water supply tank 57 follows the ground temperature, so that the water temperature suitable for irrigation is constantly maintained.

In the embodiment of the present invention constructed as described above, the long cultivation space formed in the cultivation greenhouse 1 is
It is divided into a plurality of cultivation rooms by the air curtain 25, and an emergency heater 39 is installed in each cultivation room. Then, the emergency heater 39 mixes the outside air sucked through the intake pipe 47 and the inside air sucked by the fan 39a, and then heats the mixture to discharge it into the cultivation room, while exhausting the combustion exhaust gas. Although exhausted from the pipe 50 to the outside of the room, the exhaust pipe 50 is provided in the intake pipe 47. That is, the intake pipe 47 and the exhaust pipe 50
As a result, double pipes are provided, and as a result, it is possible to easily secure a piping space and improve workability. Moreover, the outside air taken in by the intake pipe 47 is preheated based on the heat exchange with the exhaust gas having a high temperature, so the heating energy is reduced and the fuel cost of the emergency heater 39 is reduced. Can be saved.

[0022]

In summary, since the present invention is constructed as described above, the temperature of the greenhouse for cultivation is controlled by the heating device, while the intake pipe and the exhaust pipe of the heating device are piped. In doing so, since one pipe is laid inside the other pipe, it is possible to reduce the piping space, and as a result, it is possible to easily secure the piping space and significantly improve the workability.

Moreover, the outside air taken in by the intake pipe is preheated based on the heat exchange with the exhaust gas having a high temperature, so that the fuel consumption in the heating device is reduced and the fuel cost is reduced. You can save a lot.

[Brief description of drawings]

FIG. 1 is an overall plan view of a cultivation greenhouse.

FIG. 2 is a sectional view of an eaves portion.

FIG. 3 is an exploded view of the same.

FIG. 4 is a sectional view of the same as the above.

FIG. 5 is a cross-sectional view of a window portion.

FIG. 6 is an enlarged sectional view of the same.

FIG. 7 is a front view of the inside of a cultivation greenhouse.

FIG. 8 is a perspective view of an air curtain.

FIG. 9 is a plan view of a main part of the air curtain.

FIG. 10 is a perspective view of a main part of the air curtain.

FIG. 11 is a cutaway side view of a main portion of a guide rail.

FIG. 12 is a sectional view of a vertical rail portion.

FIG. 13 is a cross-sectional view of a bent rail portion.

FIG. 14 is an overall plan view of a cultivation greenhouse showing duct piping of a heat exchanger.

FIG. 15 is a plan view of an essential part of the same.

FIG. 16 is a front view of the same.

FIG. 17 is a layout plan view of an emergency heater, an air curtain blower, and a carbon dioxide gas generator.

FIG. 18 is a front view of the same.

FIG. 19 is a plan view of a main part of a greenhouse for cultivation showing duct piping of an emergency heater.

FIG. 20 is a front view of the same.

FIG. 21 is a front view of relevant parts showing an intake / exhaust structure of the emergency heater.

FIG. 22 is a side view of the emergency heater.

FIG. 23 is an overall plan view of a greenhouse for cultivation showing duct piping of a carbon dioxide gas generator.

FIG. 24 is a front view of a cultivation greenhouse showing piping of an air curtain blower.

FIG. 25 is a plan view of a main part of a greenhouse for cultivation showing a water supply pipe.

FIG. 26 is a front view of the greenhouse for cultivation showing the installation state of the water supply tank.

[Explanation of symbols]

 1 greenhouse for cultivation 1 room with 1a 18 guide rail 21 bent rail section 25 air curtain 29 sheet curtain 31 open / close drive wire 35 guide roller 36 floor unit 38 heat exchanger 39 emergency heater 40 air curtain blower 41 carbon dioxide generator 42 water supply pump 47 intake pipe 50 exhaust pipe

Claims (1)

[Claims] 1. In order to connect an intake pipe and an exhaust pipe of the heating device to a greenhouse for cultivation whose temperature is controlled by a heating device, one pipe is arranged inside the other pipe. Intake / exhaust structure of a heating device in a growing greenhouse.