JPS6325978Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a plant cultivation device, specifically, a solar heat collector equipped with a water storage tank is installed near the outside of the greenhouse, and the water in the water storage tank is heated by this heat collector. The present invention relates to a plant cultivation device that circulates the inside of the greenhouse.

Conventionally, in this type of plant cultivation device, the heat collection surface of the main body of the solar collector is always open, and therefore the heat accumulated during the daytime is radiated from the heat collection surface of the main body, resulting in a large heat loss problem. Not only that, but if the heat collecting surface of the main body is left open all the time, the heat collecting surface will be contaminated and deteriorated by dust etc., and dew condensation will freeze at night, which will shorten the life of the heat collector. be. Moreover, since the amount of heat collected by the heat collector cannot be adjusted, even if the amount of heat required in the greenhouse is small compared to the amount of heat collected by the heat collector, a predetermined amount of heat is supplied to the greenhouse, The inside of the greenhouse tended to overheat, which adversely affected the growth of plants.

The present invention was devised in view of the above-mentioned problems, and by providing a cover body with a reflector plate that opens and closes the heat collecting surface on the heat collector body, it can prevent heat from radiating from the heat collector at night. Good thermal efficiency,
In addition, it is possible to prevent contamination and deterioration of the heat collector due to dust, etc. and freezing of condensation, and when the lid body is opened, solar heat and sunlight are reflected to the heat collection surface of the heat collector and the slope of the greenhouse by the reflector plate. It is an object of the present invention to provide a plant cultivation device that can effectively utilize solar heat and sunlight, and can adjust the amount of heat collected by a heat collector according to the amount of heat required in a greenhouse.

More specifically, the solar heat collector is constructed from a heat collector main body having a heat collection surface and a lid configured to open and close the heat collection surface, and the solar heat collector is mounted on the slope of the greenhouse. disposed near the outside, and tilting the heat collector body at a height of the roof of the greenhouse via a support frame so that the heat collection surface faces the slope of the roof; The lid body is rotatably attached to the top of the heat collector body, and a reflective plate is attached to the inner surface of the lid body, and a control rod for remote control is connected to the lid body, The lid body can be opened and closed by vertical movement of the operating rod, and the degree of opening of the lid body relative to the heat collector body can be adjusted, so that when the lid body is opened, the reflector plate touches the heat collector body. It is characterized by being made to face the heat collecting surface and the slope of the greenhouse.

The present invention will be explained below with reference to embodiments shown in the drawings.

The plant cultivation apparatus shown in the drawings is arranged so that the heat collecting surface is connected to the roof 1 at the height of the roof 1a of the greenhouse 1 via a support frame 2 on the outside of the slope side of the greenhouse 1.
A water storage tank 4 in which a solar heat collector 3 is tilted so as to face the slope of a, and this heat collector 3 is installed on the ground.
The water in the tank 4 is circulated to the heat collector 3 for heating, while the hot water in the tank 4 is circulated to the greenhouse 1 to heat the greenhouse 1. There is.

The heat collector 3 is constituted by a heat collector main body 5 whose upper surface is open, and a lid 6.

The heat collector main body 5 (hereinafter referred to as the main body) has an upper header 7 at the inner upper part and a lower header 8 at the lower part horizontally arranged in an opposing manner. 9, a drain pipe 10 leading to the tank 4 is connected to the upper header 7, and a water supply pipe 12 extending from the tank 4 and having a water pump 11 in the middle is connected to the lower header 8. , due to the operation of the pump 11, the upper and lower headers 7, 8 and the water supply and drainage pipes 10, 1
2, water is circulated between the heat collecting pipe 9 and the water storage tank 4.

Further, at the inner bottom of the main body 5, a heat insulating material 13 is laid on the lower surface side of the upper and lower headers 7, 8 and the heat collecting pipe 9, and a solar heat absorption plate 14 is placed in an airtight manner on the open upper surface of the main body 1. The absorbing plate 14 collects solar heat to heat the heat collecting tube 9 inside the main body 1.

On the other hand, the lid 6 is formed to a size that can cover the entire main body 5, and a recess 6a is provided on the inner side of the lid 6 facing the main body 5, and the recess 6a collects the heat of the main body 5. A heat insulating material 15 covering the surface, that is, the absorption plate 14 is attached and integrated to form a heat insulating structure, and
A reflective plate 16 is attached to the outer surface of this heat insulating material 15.

The lid 6 is rotatably attached to the top of the main body 5 via the shaft 17, and the heat collecting surface of the main body 5 is opened and closed by the lid 6. By closing the lid 6, The main body 5 is kept insulated, and when the lid 6 is opened, solar heat is reflected by the reflective plate 16 onto the heat collecting surface of the main body 5 and the roof 1a of the greenhouse 1. The amount of heat collected by the heat collector 3 is controlled by adjusting the opening degree.

The lid body 6 is integrally formed with a leg rod 18 extending rearward of the shaft rod 17, and an operating rod 19 is connected to the leg rod 18, and the end of the operating rod 19 is connected to one of the support frames 2. The lid body 6 is opened and closed by connecting it to a slider 20 that is vertically movably inserted into the housing, and by moving the slider 20 vertically and fixing it, the lid body 6 is opened and closed;
In addition, the degree of opening of the lid 6 with respect to the main body 5 can be freely adjusted, and when the lid 6 is opened, the reflective plate 1
6 faces the heat collecting surface of the main body 5 and the slope of the greenhouse 1.

Further, the water storage tank 4 is provided with a circulation pipe 21 that circulates within the greenhouse 1, and a water pump 22 installed on the water supply side of the pipe 21 circulates the hot water in the tank 4.
A fan coil unit 23 is interposed in a part of the circulation path to heat the inside of the greenhouse 1.

In the embodiment shown in the drawings, heat storage pipes 2 are installed in the soil inside a greenhouse 1.
4 is buried, and both ends of the heat storage pipe 24 are opened near the ceiling wall in the greenhouse 1, and a fan 25 is interposed in the middle of the heat storage pipe 24 to heat-storage the high temperature air near the ceiling wall. The heat is introduced into the pipe 24 and exchanged with the soil in the greenhouse 1 to store heat.

Further, a double-layered curtain 26 is installed near the ceiling wall in the greenhouse 1 to enhance the heat retention effect of the greenhouse 1.

The present invention is constructed as described above, and when storing solar heat during the daytime, as shown by the solid line in the figure, the lid body 6 is moved to the shaft rod 1 by operating the operating rod 19.
7 to open the absorption plate 14 of the heat collector body 5, and remove the reflection plate 1 provided on the lid body 6.
6, solar heat is reflected onto the absorption plate 14 of the main body 5 or both of the absorption plate 14 and the slope of the greenhouse 1.

Therefore, the absorption plate 14 of the main body 5 is hit by solar heat directly, and also by the solar heat reflected by the reflection plate 16, and the absorption plate 8 collects the heat.
The heat collecting tube 9 inside is heated.

By heating the heat collecting pipe 9, the water from the water storage tank 4 that reaches the heat collecting pipe 9 via the water supply pipe 12 and the lower header 8 is heated by the water pump 11, and this heated water flows through the upper header 7 and the drain pipe 10. The water is then sent to the water storage tank 4, where the water and solar heat are heat exchanged and stored in the tank 4 as hot water.

The hot water in the tank 4 is then transferred to the water pump 2.
2 circulates through the greenhouse 1 through the circulation pipe 21, and the hot water in the pipe 21 and the air inside the greenhouse 1 exchange heat to heat the greenhouse 1.

For example, if the height or direction of the sun makes it difficult for the reflector 16 to reflect the heat to the heat collecting surface, or if you want to actively introduce sunlight into the greenhouse 1, the slider 20 can be moved up and down. The lid body 6 is operated to open and close via the remote control control rod 19, the reflecting plate 1 is directed toward the slope of the greenhouse 1, and the sunlight is reflected by the reflecting plate 16 onto the slope of the greenhouse 1. It is. This increases the radiation of sunlight into the greenhouse 1 and promotes the assimilation of crops. When the amount of heat required in the greenhouse 1 is large, the absorbing plate 14 of the main body 5 is fully opened by the lid 6, and the angle of the lid 6 is adjusted so that the solar heat is directed to the absorbing plate 14 by the reflecting plate 16 to a maximum. By causing limited reflection, the amount of heat collected by the heat collector 3 is increased, and when the required amount of heat in the greenhouse 1 is small, the degree of opening of the lid 6 with respect to the main body 5 is adjusted, and the amount of heat collected by the heat collector 3 is increased. The amount of heat collected is adjusted by

On the other hand, at night, the lid 6 is rotated downward around the shaft 17 to close the absorption plate 14 of the main body 5, as shown by the imaginary line in the figure. Heat radiation from the absorption plate 5 is prevented, thereby reducing heat loss, and the cover 6 prevents contamination and deterioration of the absorption plate 14 due to dust and condensation and freezing at night.

As explained above, in the plant cultivation device of the present invention, the solar heat collector installed in the greenhouse is composed of a main body having a heat collecting surface and a lid body configured to open and close the heat collecting surface. The container is placed near the outside of the slope side of the greenhouse, and the heat collector body is placed at the height of the roof of the greenhouse through a support frame so that the heat collection surface faces the slope of the roof. At the same time, the lid body is rotatably attached to the top of the heat collector body, and a reflective plate is attached to the inner surface of the lid body, and a remote control device is attached to the lid body. The lid body is opened and closed by vertical movement of the operating rod, and the degree of opening of the lid body relative to the heat collector body can be adjusted, so that when the lid body is opened, the reflection Since the plates face the heat collecting surface of the collector body and the slope of the greenhouse, heat loss can be minimized by closing the heat collecting surface of the main body with the lid at night. Not only can the thermal efficiency be improved, but by closing the lid, it is possible to prevent contamination and deterioration of the heat collecting surface of the main unit at night due to dust, etc., and to prevent condensation and freezing, making it possible to use the heat collector stably over a long period of time. Moreover, by adjusting the degree of opening of the lid relative to the heat collector body, the reflector plate faces the heat collection surface of the heat collector body and the slope of the greenhouse;
By reflecting sunlight onto the heat collecting surface by the reflecting plate, it is possible to increase the amount of heat collected by the collector body, and, for example, depending on the height and direction of the sun, the reflecting plate can reflect sunlight onto the heat collecting surface. If it is difficult to reflect the sun's rays into the greenhouse, or if you want to actively introduce sunlight into the greenhouse, point the reflector toward the slope of the greenhouse. By reflecting it, the radiation of sunlight into the greenhouse can be increased and the assimilation effect of plants can be promoted.
As a result, the effectiveness of sunlight utilization is high, and plant cultivation in the greenhouse can be carried out well.Furthermore, by finely adjusting the opening degree of the lid relative to the main body, the amount of heat required in the greenhouse can be adjusted. It is also possible to adjust the amount of heat collected by the heat collector.

Furthermore, the opening degree adjustment and opening/closing operation of the lid provided at the height of the roof can be easily performed from a low position in the greenhouse using a remote control lever provided on the lid.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a plant cultivation device according to the present invention, and FIG. 2 is an enlarged side sectional view of a solar heat collector. 1... Greenhouse, 3... Heat collector, 4... Water storage tank, 5... Heat collector body, 6... Lid, 16... Reflector plate.

Claims (1)

[Scope of utility model registration request] In a plant cultivation apparatus that includes a greenhouse and a solar heat collector equipped with a water storage tank, the water in the water storage tank is heated by the heat collector and circulated within the greenhouse, wherein the solar heat collector is composed of a heat collector main body having a heat collecting surface and a lid formed to open and close the heat collecting surface, and the solar heat collector is disposed near the outside of the slope side of the greenhouse. , the heat collector body is tilted at the height of the roof of the greenhouse via a support frame so that the heat collection surface faces the slope of the roof; The lid body is rotatably attached, and a reflective plate is attached to the inner surface of the lid body, and a remote control operation rod is connected to the lid body, and the vertical movement of the operation rod causes the The lid body can be opened and closed, and the opening degree of the lid body relative to the heat collector body can be adjusted, so that when the lid body is opened, the reflector plate is connected to the heat collection surface of the heat collector body and the slope of the greenhouse. A plant cultivation device that is characterized by being designed to suit the needs of people.