JPS63119636A - Dew condensatrion water treatment structure in culture greenhouse - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for treating condensed water in a cultivation greenhouse for growing and cultivating plants such as vegetables, fruits, and flowers.

[Problems to be solved by the prior art and the invention] In general, greenhouses for cultivating this type of cultivation, in cold seasons such as winter,
If outdoor cultivation is not possible, or if plants can be grown quickly through forced cultivation, the surrounding area is surrounded by translucent materials such as translucent films or boards, and the room temperature can now be maintained higher than the outside temperature. There is. However, conventionally, translucent members are single-layered, which inevitably results in a lack of heat insulation.As a result, as the outside temperature drops significantly at night, the temperature inside the greenhouse continues to drop, which has a negative impact on plants. There is. To deal with this, it is necessary to increase the indoor temperature by heating the room, but this also increases the cost burden for heating. Therefore, in order to increase heat retention at night, double translucent members are used, but in this case, sunlight must pass through the double translucent members. As a result, another drawback arises: the amount of sunlight is significantly reduced.

Therefore, we first proposed installing shutters inside the greenhouse that could be opened and closed to ensure sunlight during the day and heat retention at night, and we were able to achieve considerable results. In this case, the inner surface of the slats constituting the shutter curtain is prone to condensation due to temperature differences, and in that case, the condensed water falls as water droplets, which may adversely affect the plants.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a structure for treating condensed water in a cultivation greenhouse that can eliminate these drawbacks. A cultivation greenhouse surrounded by translucent materials is equipped with an opening/closing shutter that can be freely opened and closed. The greenhouse is characterized in that it can be switched to a double-layer greenhouse made of members, and that the inner inner surface of the greenhouse of the slats constituting the opening/closing shutter is inclined so that condensed water adhering to the inner surface flows toward the side edges of the slats. It is something to do.

With this configuration, the present invention can reliably prevent condensed water adhering to the inner surface of the shutter slats from dripping in a greenhouse in which a shutter that can be opened and closed is provided.

[Embodiment] Next, an embodiment of the present invention will be described based on the drawings. In the drawing, reference numeral 1 is a greenhouse, and the greenhouse 1 is built long in the east-west direction with the gable side facing approximately east-west. A framework is formed using a pillar 3 on the north side that is inclined so as to be displaced, and a roof support 4 that is supported in an inclined manner so that it becomes lower toward the south side between the upper ends of both pillars 2.3.

The greenhouse 1 is formed by extending a translucent resin film 5 over the entire surface of these supports 2, 3, 4 and an auxiliary frame material (not shown).

On the other hand, 6 is a reflective plate that also serves as a heat insulating material, and the reflective plate 6
has a reflective surface formed from a member such as aluminum foil on its surface. 3 are erected in an inclined manner with the reflective surface facing south at a predetermined interval so as to reflect sunlight and direct the reflected light toward the upper surface of the floor within the greenhouse. It has become.

Reference numeral 7 denotes an opening/closing shutter that is assembled into the greenhouse, and guide rails 8 constituting the opening/closing shutter 7 are integrally attached to the pillars on both end sides of the greenhouse 1 either directly or via support frames. There is.

In the embodiment, the guide rail 8 is constituted by two rail bodies 8 a and 8 b that are arranged in parallel inside and outside, and on the south side faces in a vertical direction substantially parallel to the south side support 2, and faces toward the ceiling. The slope on the sides is gentler than that of the roof support 4, but it is laid so that the south side is lower.

Furthermore, on the north side, the outer rail body 8a is arranged in a storage space formed in the gap between the reflector 6 and the north side support column 3, and the outer circumference side rail body 8a is parallel to the support column 3, and the inner circumference side rail body 8b is arranged in parallel with the support column 3. It is laid out so that it has a steeper slope.

On the other hand, the slats 9 constituting the shutter curtain are made of a heat insulating material such as hard polyurethane foam, and the inner surfaces of the slats 9 are curved so that the left and right edges are lower and the center is higher. It is formed. Further, the reflective plate 6 is provided on the inner and outer surfaces of the slat 9.
A reflective surface similar to that shown in FIG. The inner running rollers 10 are assembled so as to run on the inner rail body 8b, and the outer running rollers 11 run on the outer rail body 8a. Further, 15 is a gutter provided on the indoor side of the guide rail 8 from the ceiling side to the south side along the guide rail 8, and the chain gutter 15 is a gutter that flows to the side edge of the slat and drips from there as will be described later. It is designed to catch and drain condensed water.

On the other hand, reference numeral 12 denotes a working chino attached to the roller shaft 10a of the inner traveling roller 10, and the working chino 12 is arranged so that the edges of adjacent slats 9 face each other with a predetermined gap. The slats 9 are connected continuously. Further, 13 is an opening/closing machine provided at a part of the north side corner of the guide rail 8.

A driving sprocket 14 that is chain-transmitted to the opening/closing machine 13
is adapted to mesh with the operating chain 12, and the shutter curtain can be opened and closed by the chain forced transfer operation of the drive sprocket 14 accompanying the forward and reverse drive of the opening/closing machine 13. That is, when the shutter curtains are fully open, they are stored in a stacked manner on the guide rail 8 of the storage section formed on the north side, but when the operating chino 12 is moved to the south side by the drive of the opening/closing machine 13. The slats 9 are linked together and sent out in order from the upper slat 9.The leading slat 9 reaches the tip of the guide rail 8, and when the gap between each slat 9 disappears, it is fully opened, and this state is detected by a lower limit switch (not shown). Then, the drive of the opening/closing machine 13 is stopped. Conversely, by driving the switch 13 in the opposite direction to the above, the slats 9 are sequentially fed into the storage section on the north side and are fully opened.This is detected by an upper limit switch different from the above, and the switch 13 is driven. The drive is stopped, and in this way the opening and closing of the opening and closing shutter 7 can be controlled.

In the embodiment of the present invention configured as described above, the opening/closing shutter 7 is kept fully open during the daytime when sunlight is shining, and by doing so, the sunlight is transmitted through the single resin film 5 very efficiently. It is possible to secure the necessary sunlight by entering the sun. On the other hand, when the outside temperature drops at night and the indoor temperature is also used to drop abnormally, the opening/closing machine 13 is driven to fully open the opening/closing shutter 7. By doing so, the greenhouse 1 becomes a double insulation layer consisting of the outer resin film 5 and the inner fully closed shutter curtain, and therefore, a drop in the room temperature inside the opening/closing shutter 7 is reliably prevented. This will greatly improve heat retention.

On the other hand, in this device, when the opening/closing shutter 7 is in a fully closed state, there is a temperature difference between the interior chamber A surrounded by the opening/closing shutter 7 and the intermediate chamber B between the opening/closing shutter 7 and the outer resin film 5. As a result, condensation is likely to occur on the inner surface of the slat 9 of the opening/closing shutter 7, and the generated condensation tends to fall as water droplets. However, in the present invention, since the inner surface of the slat 9 is formed in a curved shape such that the inner surface of the slat 9 is higher toward the center and lower toward both side edges, the condensed water adhering to the inner surface of the slat 9 is inclined. It flows along the inner surface of the slat to the side edge. This condensed water is then received by the gutter 15 and drained.

As described above, in the present invention, even if condensed water adheres to the inner surface of the slat 9 when the opening/closing shutter 7 is fully closed, the condensed water flows along the inclined inner surface of the slat and flows toward the side edge. Therefore, it is possible to reliably avoid condensed water falling as water droplets, hitting the plants, and adversely affecting the growth of the plants, thereby allowing the plants to grow in a healthy manner.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and the inner surface of the slat may not have a curved shape but a mountain-like shape that becomes higher toward the center as shown in FIG. good. Furthermore, the inner surface of the slat may be inclined so that one end of the left and right sides is higher and the other end is lower, as shown in Fig. 7. In this case, the direction of inclination is alternated in consideration of when the shutter curtain is stored. It is best to attach slats to the

Additionally, the angle of inclination of the inner surface of the slat must be such that water droplets flow to the side edges without falling, but it is possible to apply a droplet agent (surfactant) to the inner surface of the slat to prevent condensed water from dropping. If the condensed water is allowed to spread on the inner surface of the slat instead, it will be easier for the condensed water to flow down the slope, making it possible to lower the slope angle.

[Operations and Effects] In summary, since the present invention is constructed as described above, sunlight can be efficiently incident as a single layer made of a translucent member during daylighting, and at night it is fully closed. Although the opening/closing shutter and the translucent material are double-layered and can greatly improve heat retention, even if condensation occurs on the inner surface of the slat due to the temperature difference when the opening/closing shutter is fully open, the inner surface of the slat will not absorb the accumulated condensation. Since the slat is sloped so that water flows toward the side edge, there is no possibility that the condensed water that has adhered to the slat will turn into water droplets and fall.
It is possible to eliminate the adverse effects of condensed water on plants and ensure healthy growth.

[Brief explanation of the drawing]

The drawings show a condensed water treatment structure in a cultivation greenhouse according to the present invention, in which FIG. 1 is a vertical cross-sectional view of the greenhouse with the shutter fully open, and FIG. 2 is a vertical cross-sectional view of the greenhouse with the shutter fully closed. Fig. 3 is a perspective view of the main part, Fig. 4 is a longitudinal sectional view of the main part, Fig. 5 is a front view of the slats, and Figs. 6 and 7 respectively show the other side. It is a front view of the slat shown. In the figure, 1 is a greenhouse, 7 is an opening/closing shutter, 8 is a guide rail, and 9 is a slat. Patent Applicant: Sanwa Shutter Industry Co., Ltd. Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1) A cultivation greenhouse surrounded by translucent members is equipped with a shutter that can be opened and closed freely, so that the cultivation greenhouse is completely closed as a single-layer greenhouse made of translucent members. In addition to making it possible to switch to a double-layered greenhouse with an opening/closing shutter and a translucent member, the greenhouse's inner inner surface of the slats constituting the opening/closing shutter is inclined so that condensed water adhering to the inner surface flows toward the side edges of the slats. A structure for treating condensed water in a cultivation greenhouse, which is characterized by: 2) The structure for treating condensed water in a cultivation greenhouse according to claim 1, wherein the slat has an inner surface sloped in a curved manner so that the height increases toward the center. 3) The structure for treating condensed water in a cultivation greenhouse according to claim 1, wherein the slat has an inner surface inclined in a mountain shape such that the inner surface becomes higher toward the center. 4) The structure for treating condensed water in a cultivation greenhouse according to claim 1, wherein the slat has an inner surface sloped so that one end of the slat is high and the other end is low. .