JP3155683U - Thermal insulation space structure of agricultural house - Google Patents

Abstract

[PROBLEMS] To form a heat insulation space layer on the roof with two layers of upper and lower films, distribute hot air in this narrow space to remove condensation generated on the inner surface of the upper film, and sunlight from inside the house to the inside of the house The present invention provides a heat insulating space structure for an agricultural house that can sufficiently irradiate and quickly warm the inside of the house and prevent the house from collapsing by sliding the snow on the roof. In an agricultural house in which a transparent film is stretched across two upper and lower layers on a roof frame 1 formed of a steel frame, and an insulating space layer 4 is formed between the upper and lower films 2 and 3. An air duct 13 is provided on the eaves side in the heat insulating space layer 4, and a hot air supply duct 9 connected to the heater 8 is inserted into the air duct 13 to supply hot air from the air duct 13 to the heat insulating space layer 4. It is heated to prevent condensation and to allow the snow on the roof to slide down. [Selection] Figure 1

Description

The present invention relates to an insulated space structure of an agricultural house.

In general, greenhouses that cultivate houses have built a house-shaped frame with steel frames, attached film fixtures in a wooden shape at appropriate intervals, and covered this with a transparent plastic film to assemble an agricultural house.

However, in an agricultural house formed of only one film in a cold region, there is a problem that the heating effect is lowered because warmed air rises and heat is radiated from the film in contact with the outside air.

For this reason, a curtain is provided on the ceiling side of an agricultural house, or the roof film has a two-layer structure, and a heat insulation space layer is formed between the upper film and the lower film to enhance the heat insulation effect in the house and save energy. Agricultural houses designed for this purpose have become widespread (utility model registration document 1).

In this way, by making the roof of the agricultural house a two-layer structure, it is possible to improve the heat insulation, but when the outside air cools in the morning, the high humidity air inside the upper film is cooled, and the upper layer There was a problem that water droplets condensed on the inner surface of the film to become cloudy glass, and the sun's rays were not sufficiently irradiated in the morning until the water droplets evaporated, and the temperature in the house did not rise. In addition, in the snowfall area, when snow accumulates on the roof, it gradually accumulates and the agricultural house collapses due to the weight of the snow.

Japanese Patent No. 2627761

The present invention improves the above problems, enhances the heat insulation effect, removes water droplets adhering to the inner surface of the upper layer film of the heat insulation space layer, and sufficiently irradiates the inside of the house with sunlight rays from the dawn. It is possible to provide a heat insulating space structure for an agricultural house that can prevent the house from collapsing by sliding down snow accumulated on the roof.

In the heat insulation space structure of the agricultural house according to claim 1 of the present invention, a transparent film is stretched across the upper and lower layers on a roof frame formed of steel frames, and the heat insulation space layer is formed between the upper and lower films. In the agricultural house formed, a heater is installed in the agricultural house, and the tip of the hot air supply duct of the heater is inserted into the heat insulating space layer, and an exhaust hole is formed on the ridge side of the lower film. An air duct formed of a cylindrical transparent film having a plurality of hot air blowing holes opened along the longitudinal direction is inserted along the eaves on the eaves side in the heat insulating space layer. Connect the tip of the hot air supply duct to one end of the air duct, and distribute the hot air blown out from the air duct in the heat insulation space layer to prevent condensation and slide down the snow on the roof It is characterized by

The heat insulation space structure of the agricultural house according to claim 2 of the present invention is such that a transparent film is stretched across the upper and lower layers on a roof frame formed of steel frames, and the heat insulation space layer is formed between the upper and lower films. Agricultural house with an inflow hole on the eave side of the lower film that forms the heat insulation space layer, an exhaust hole on the ridge side, and pipes with electric heater wires inserted, or hot water circulates A pipe is provided on the eaves side in the heat insulation space layer to heat the heat insulation space layer to prevent dew condensation and to slide down snow accumulated on the roof.

According to the heat insulation space structure of the agricultural house of Claim 1, the air duct formed with the cylindrical transparent film is arranged on the eaves side of the heat insulation space layer, and the hot air generated by the heater is supplied with the hot air The air is blown from the ducts through the air ducts to the inside of the heat insulation space layer, and the entire space is heated uniformly and efficiently to remove condensation. It is possible to quickly warm the interior of the house and to prevent the house from collapsing by sliding down the snow on the roof.

According to the heat insulation space structure of the farm house according to claim 2 of the present invention, the heat insulation space layer is formed with the upper and lower layers of the roof, and the electric heater wire is inserted into the narrow heat insulation space layer. A pipe or a pipe through which hot water circulates is installed to circulate hot air, remove the condensation generated on the inner surface of the upper film, and quickly warm the interior of the house, while sliding the snow on the roof to slide the house Can be prevented from collapsing.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. First, as shown in FIG. 1, a film fixture (not shown) is attached at a predetermined interval on a roof frame 1 formed of a steel frame such as a channel material, and a lower film 2 formed of transparent plastic is faced to the surface. In addition, a film fixing tool is attached at a distance above this, and a transparent upper film 3 is stretched in a planar shape, and a heat insulating space layer 4 is formed between the upper and lower two films 2 and 3. Is formed. An agricultural house 7 is also formed on the pillar frame 5 with a transparent film 6 stretched in a wall shape to surround the inside.

A heater 8 is installed in the agricultural house 7, and the hot air supply duct 9 is bifurcated as shown in FIG. 2, and each of the branched ends forms a heat insulating space layer 4. It is inserted on the eave side. The heater 8 is provided with a control device 11 for controlling the operation time by a timer before sunrise. Further, an exhaust hole 10 formed of a net is opened on the ridge side of the lower layer film 2 forming the heat insulating space layer 4.

Furthermore, a cylindrical air duct 13 is inserted along the eaves side of the heat insulating space layer 4 along the eaves. This air duct 13 is formed of a cylindrical transparent film 14 as shown in FIG. 4A, and has a plurality of hot air blowing holes 15 along its longitudinal direction. Eight hot air supply ducts 9 are connected. The cylindrical film 14 forming the lower layer film 2, the upper layer film 3 and the air duct 13 is formed of, for example, a fluorine plastic film having a smooth surface, high transparency, and excellent durability. .

The heat insulation space structure of the agricultural house having the above structure is excellent in heat insulation effect because the heat insulation space layer 4 is formed of the lower film 2 and the upper film 3 whose roof is smooth and transparent. Moreover, although it is formed in two layers with the lower layer film 2 and the upper layer film 3, since it is a transparent film and the air duct 13 is also formed with the transparent cylindrical film 14, incidence of sunlight is not hindered, The house can be warmed up efficiently.

Further, when the outside air cools at night, the air in the heat insulating space layer 4 in contact with the upper film 3 is cooled, and water droplets condense on the inner surface of the upper film 3 to become frosted glass. For this reason, the warm air is sent from the warm air supply duct 9 to the air duct 13 by operating the heater 8 intermittently for 10 to 20 minutes by the control device 11 at 1 to 2 hours before sunrise.

The air duct 13 is in a deflated state as shown in FIG. 4 (A) before operating the heater 8, but when the heater 8 is operated, hot air is supplied as shown in FIG. 4 (B). Warm air is supplied from the duct 9 to swell, spreads and adheres between the lower film 2 and the upper film 3 as shown in FIG. 3, and warm air is blown into the heat insulating space layer 4 from the hot air blowing holes 15. The Since the hot air blowing holes 15 are opened at intervals along the longitudinal direction of the tubular film 14, the hot air is supplied to the end side along the eaves of the air duct 13 and the heat insulating space layer 4. Can be heated uniformly throughout. The blown warm air rises up the inclined heat insulating space layer 4 and is exhausted into the house through the exhaust holes 10 formed in the lower layer film 2 on the ridge side to heat the inside.

As a result, high-temperature air circulates in the heat insulating space layer 4 constituting the roof, and water droplets adhering to the inner surface of the upper film 3 evaporate. In this case, the heater 8 can remove water droplets only by intermittently operating for a short time before sunrise. For this reason, sunlight is irradiated in the house 7 with sunrise, and it can be warmed up efficiently by sunlight.

When a heavy snow warning or the like is issued, the controller 11 is set and the heater 8 is continuously operated, so that the heat insulating space layer 4 is constantly heated and the upper layer 3 having a smooth surface is formed. Since the snow accumulated on the surface melts and slides down at the contact surface, it is possible to prevent the snow from accumulating and collapsing due to its weight. In this way, the entire house is not heated to a high temperature, but only the narrow heat insulating space layer 4 constituting the roof is locally heated to remove condensation, and snow can be slid down, so there is little energy to use. is there.

FIG. 5 shows an embodiment in which the present invention is applied to a multi-storied house. The roof of the multi-storied house 16 has a heat insulating space layer 4 formed by a lower layer film 2 and an upper layer film 3. A gutter 18 formed of a metal plate is attached to be inclined along the ridge direction, and a hot water circulation pipe 19 is provided on the upper surface of the gutter 18. The hot water circulation pipe 19 is connected to a boiler (not shown) via a pump, and the hot water circulates to heat the tub 18. Also, an air duct 13 formed of a cylindrical transparent film 14 is inserted above the vicinity of the eaves-side flange 18 of the heat insulating space layers 4 and 4.

In the heat insulation space structure of the agricultural house having the above-described structure, when the boiler is operated when snow falls and the hot water is circulated through the hot water circulation pipe 19, the firewood 18 in contact with the boiler 18 is also heated. Moreover, the snow 20 piled up on the roof of the continuous house 16 is heated by the warm air flowing through the heat insulating space layer 4, and slides down because the surface is covered with the smooth upper film 3. There is no problem with the snow 20 that has slid down on the side of the roof, but the snow 20 that has slid down into the valley 17 accumulates on the fence 18.

Since the hot water circulation pipe 19 is connected to the kite 18, the snow 20 coming into contact therewith is melted by the temperature of the hot water, and the melted water is discharged by the kite 18. Further, in the hot water circulation pipe 19 and the kite 18, only this vicinity is heated, and there is a problem that a hollow portion is formed inside the accumulated snow 20 to form a bridge shape. For this reason, in the present invention, the air duct 13 is attached in the heat insulation space layer 4 near the upper portion of the valley portion 17, so that warm air blows out from the hot air blowing holes 15 to heat the upper film 3 from the inside.

When the upper layer film 3 is heated, the snow 20 accumulated above the valley portion 17 is melted to become a sherbet shape and becomes slippery and falls down to the side of the ridge 18. As a result, the hollow portion is eliminated and the hot water circulation pipe 19 and the kite 18 are always in contact with each other, so that snow can be melted efficiently and the collapse of the linked house 16 due to the weight of the snow 20 can be prevented. it can. In this case, an electric heater wire or a heat pipe may be used instead of the hot water circulation pipe 19.

6 and 7 show another embodiment of the present invention. When the heat insulation space layer 4 has a small height, a pipe 24 into which an electric heater wire 23 is inserted is attached along the eaves side. Is. An inflow hole 25 formed of a net is opened on the eave side of the lower layer film 2 constituting the heat insulating space layer 4. Further, an exhaust hole 10 formed of a net is opened on the ridge side of the lower layer film 2 as in FIG.

In the heat insulation space structure of the agricultural house having the above configuration, when the electric heater wire 23 is energized, the pipe 24 into which the electric heater wire 23 is inserted is heated and radiates heat from the entire surface. Since the inflow hole 25 and the exhaust hole 10 are opened above and below the heat insulating space layer 4, the air in the house flows in and rises, and the heat insulating space layer 4 is heated throughout. Moreover, since the electric heater wire 23 is inserted into the pipe 24 and the pipe surface temperature becomes lower than the temperature of the electric heater, damage due to heat can be prevented even if it contacts the lower layer film 2.

Thus, when the heat insulation space layer 4 is narrow, even if the air duct 13 with a narrow inner diameter is inserted, the hot air is not supplied to the end side even though the flow resistance is high, but the pipe with the electric heater wire 23 inserted By inserting 24, heat is radiated from the entire surface along the longitudinal direction of the pipe 24, so that the entire heat insulating space layer can be efficiently and uniformly heated.

In the above description, the case where the pipe 24 with the electric heater wire 23 inserted is used, but a structure with the hot water circulation pipe 19 inserted may be used. In addition, although the exhaust hole 10 and the inflow hole 25 are shown as being formed in a net shape, only the holes may be used.

It is a perspective view which shows the agricultural house which inserts an air duct in the roof which formed the heat insulation space layer by one Embodiment of this invention, and circulates the warm air from a heater. It is a vertical front view which shows the agricultural house of FIG. It is a vertical front view of the agricultural house which shows the state which is supplying the warm air to the air duct of FIG. (A) is a perspective view which shows the air duct of the deflated state, (B) is a perspective view which shows the air duct of the state swelled by supplying warm air. It is a longitudinal front view which shows the state which attached the fence which provided the hot water circulation pipe in the trough part of the continuous building house. It is a perspective view of the agricultural house which shows the state which inserted the pipe which incorporated the electric heater wire in the heat insulation space layer by other embodiment of this invention. It is a vertical front view which shows the state which inserted the pipe incorporating the electric heater wire of FIG. 6 in the heat insulation space layer.

1 Roof frame
2 Lower layer film
3 Upper layer film
4 Insulation space layer
6 films
7 Agricultural house
8 Heating machine
9 Hot air supply duct
10 Exhaust hole
11 Control device
13 Air duct
14 Cylindrical film
15 Hot air outlet
16 consecutive house
17 Tanibe
18 樋
19 Hot water circulation pipe
20 snow
23 Electric heater wire
24 pipe
25 Inflow hole

Claims (2)

In an agricultural house in which a transparent film is stretched across two upper and lower layers on a roof frame formed of a steel frame, and an insulating space layer is formed between the upper and lower films, a heater is provided in the agricultural house. Install and insert the tip of the hot air supply duct of this heater into the inside of the heat insulation space layer, open an exhaust hole on the ridge side of the lower film, and in the longitudinal direction on the eave side in the heat insulation space layer Along the eaves, an air duct formed of a cylindrical transparent film having a plurality of hot air blowout holes is inserted along the eave, and the tip of the hot air supply duct is connected to one end side of the air duct. A heat insulation space structure of an agricultural house characterized in that warm air blown out from the air duct is circulated in the heat insulation space layer to prevent condensation and to slide down snow accumulated on the roof. In an agricultural house in which a transparent film is stretched across the upper and lower layers on a roof frame formed of steel frames, and an insulating space layer is formed between the upper and lower films, the lower film constituting the insulating space layer An insulative hole is opened on the eaves side, an exhaust hole is opened on the ridge side, and a pipe into which an electric heater wire is inserted or a pipe through which hot water circulates is provided on the eave side in the insulated space layer A heat insulating space structure for an agricultural house, characterized by heating the roof to prevent dew condensation and sliding down the snow on the roof.