JPH0223774B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a heat storage case in which a plurality of heat storage bodies storing a heat storage agent utilizing latent heat are arranged side by side to form an air flow passage between adjacent ones, and An air suction case for supplying the greenhouse air taken in from the suction port to the heat storage case is provided at the top of the heat storage case, and an opening for discharging air from the heat storage case so as to return it to the greenhouse. The present invention relates to a temperature control device for a greenhouse, in which an exhaust case equipped with the above is provided at a lower part of the heat storage case.

The above device stores unnecessary thermal energy during the daytime when there is sunlight, thereby performing air conditioning during the daytime, while at night the stored thermal energy is used. heating can be performed by
During heat storage, high-temperature air present in the upper part of the greenhouse is sucked in through the inlet to efficiently store heat, and when heat is released, air is released to the lower part of the greenhouse to efficiently heat the greenhouse. Conventionally, a heat storage body is constructed by storing a heat storage agent in a spherical container, but in this case, the heat storage agent is located in the center of the spherical container. As a result, the efficiency of heat supply to Because the passageway has a complicated shape along the outer surface of the spherical container, in order to properly flow air through the passageway, it is necessary to use large fans with large blowing force and other equipment for air flow. It also had the disadvantage of being expensive.

Additionally, conventionally, when you want to change the heat storage capacity of a greenhouse temperature control device depending on the size of the greenhouse or the season,
Select and install a temperature control device suitable for the scale of the greenhouse from multiple types of temperature control devices with different heat storage capacities, or
Alternatively, the heat storage body of one temperature control device can be attached and removed as appropriate, but in the former case, multiple temperature control devices must be prepared in advance, which is disadvantageous in terms of cost, and in the latter case, the heat storage body Because of the side-by-side structure, the disadvantage is that it takes a lot of time and effort to take out and assemble.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to easily modify a heat storage body, and
The object of the present invention is to enable efficient heat storage by simply modifying the installation structure of the heat storage body, and to simplify the configuration for this purpose.

The characteristic structure of the temperature control device for a greenhouse according to the present invention is that in the above-mentioned one, the heat storage bodies are configured in a plate shape, and the heat storage bodies are installed in a standing position in the divided case portions that constitute the heat storage case. Further, the heat storage case is configured such that the plurality of divided case parts are arranged vertically so that they can be separated from each other or assembled together, with the air flow passages communicating with each other vertically.

Next, the effects of the characteristic configuration of the present invention will be described.

That is, the heat storage agent storage container is made into a plate shape so that heat exchange between the heat storage agent stored therein and the air can be performed efficiently over the entire heat storage agent, and,
The heat storage body is installed in an upright position along the flow direction of air flowing from above to below, so that resistance to air flowing inside the heat storage case is reduced.

Therefore, even on days when the sunlight hours are short, such as in the winter, the required amount of heat storage can be obtained using a small number of heat storage bodies while ensuring that all of the heat storage agents change phase appropriately. Since the air flow resistance is reduced, the air can be made to flow in a predetermined manner even if a small fan with a small blowing force is used.

In addition, the heat storage case has multiple divided case parts,
Since the upper and lower air flow passages are in communication with each other and are arranged vertically so that they can be separated or assembled, the heat storage capacity can be adjusted to suit the size of the greenhouse by simply changing the number of split case parts installed. In addition, since there is no need to attach or detach the heat storage body itself, the heat storage capacity can be easily changed without any effort.

As a result, we have achieved a temperature control device for greenhouses that can efficiently store heat while simplifying the equipment and has great practical advantages.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a vinyl or glass greenhouse 1 is provided for growing various crops such as tomatoes and melons, and a temperature control device 2 is installed inside the greenhouse 1.
to keep the temperature inside the greenhouse at an appropriate temperature (e.g. 30℃~
The temperature control device 2 will be described in detail below.

A plurality of thin plate-like heat storage bodies 3 that utilize latent heat are arranged side by side in a heat storage case 4 in an upright position, with an air flow path S formed between adjacent ones;
Then, a downwardly expanding air suction case 7 for distributing and supplying the air inside the greenhouse 1 sucked by the air suction electric fan 6 from the air suction port 5 over the entire upper surface of the heat storage case 4 is installed. An exhaust case 9 is provided at the upper part of the heat storage case 4 and has an opening 8 for discharging the air from the heat storage case 4 so as to be returned to the inside of the greenhouse 1. During the daytime when there is sunlight, unnecessary thermal energy is transferred to the heat storage body 3.
In order to store heat and cool the inside of the greenhouse,
Moreover, at night, the inside of the greenhouse 1 is heated using the stored thermal energy. However, when there is a shortage of thermal energy in the winter, etc., a heating device that utilizes the combustion heat of fuel such as heavy oil may be used in conjunction with it, or a heat storage body (3) may be installed according to the volume of the greenhouse 1. It is a good idea to change the number.

To constitute the heat storage body 3, a plate-shaped container 3A made of synthetic resin is provided, and a crystallization accelerator is mixed in the container 3A, and a heat storage agent containing calcium chloride as a main component is stored in the container 3A. be. In addition, since the sunshine hours are about 5 hours in winter, the heat storage agent is preferably configured so that the phase change is completed when the temperature inside the greenhouse 1 increases due to about 5 hours of sunlight.

When the heat storage body 3 is arranged side by side in the heat storage case 4, an L-shaped frame 10 is provided to engage and support the four corner portions of the heat storage body 3, and an interval for forming a passage S in the container 3A is provided. A regulating protrusion 11 is integrally formed.

Further, the heat storage case 4, the air intake case 7,
The exhaust cases 9 are connected to each other in a separable manner to facilitate assembly and disassembly. Further, in configuring the heat storage case 4, a split case portion 4 that accommodates each heat storage body 3 separately is provided.
Multiple pieces of a are connected vertically, and assembly,
In addition to facilitating disassembly, the amount of heat storage can be easily increased or decreased by changing the number of divided case parts 4a installed.

5A and 5B show another embodiment of the heat storage body 3, which is made of a film-like sheet made of nylon or the like.
A heat storage agent is stored in a bag 3B in which the pieces are connected. Then, when the heat storage bodies 3 are arranged side by side, 4 of the bags 3B
A rod-shaped body 12 for hanging support is provided to pass through each corner, and a spacer 13 for regulating the interval for forming a passage S is fitted onto the rod-shaped body 12. In addition, to form the bag 3B, a downwardly expanding air suction case 7 is provided on the upper part of the heat storage case 4 for distributing and supplying air across the three horizontal shafts arranged in the vertical direction. The heat storage case 4
An exhaust case 9 equipped with an opening 8 for discharging air from the greenhouse 1 so as to return it to the inside of the greenhouse 1 is provided at the lower part of the heat storage case 4. The inside of the greenhouse 1 is cooled by storing unnecessary thermal energy in a heat storage body 3, and the inside of the greenhouse 1 is heated using the stored thermal energy at night. However, when there is a shortage of thermal energy in the winter, etc., a heating device that utilizes the combustion heat of fuel such as heavy oil may be used in combination, or a heat storage body (3) may be installed according to the volume of the greenhouse 1. It is a good idea to change the number.

To constitute the heat storage body 3, a plate-shaped container 3A made of synthetic resin is provided, and a crystallization accelerator is mixed in the container 3A, and a heat storage agent containing calcium chloride as a main component is stored in the container 3A. be. In addition, since the sunshine hours are about 5 hours in winter, the heat storage agent is preferably configured so that the phase change is completed when the temperature inside the greenhouse 1 increases due to about 5 hours of sunlight.

When the heat storage body 3 is arranged side by side in the heat storage case 4, an L-shaped frame 10 is provided to engage and support the four corner portions of the heat storage body 3, and an interval for forming a passage S in the container 3A is provided. A regulating protrusion 11 is integrally formed.

Further, the heat storage case 4, the air intake case 7,
The exhaust cases 9 are connected to each other in a separable manner to facilitate assembly and disassembly. Further, in configuring the heat storage case 4, a split case portion 4 that accommodates each heat storage body 3 separately is provided.
Multiple pieces of a are connected vertically, and assembly,
In addition to facilitating disassembly, the amount of heat storage can be easily increased or decreased by changing the number of divided case parts 4a installed.

5A and 5B show another embodiment of the heat storage body 3, which is made of a film-like sheet made of nylon or the like.
A heat storage agent is stored in a bag 3B in which the pieces are connected. Then, when the heat storage bodies 3 are arranged side by side, 4 of the bags 3B
A rod-shaped body 12 for hanging support is provided to pass through each corner, and a spacer 13 for regulating the interval for forming a passage S is fitted onto the rod-shaped body 12. In addition, to form the bag 3B, three horizontal axis-shaped storage sections a are arranged in the vertical direction, and the radius of curvature of the corners of the storage sections a is increased,
Stress concentration when the volume of the heat storage agent decreases due to crystallization is suppressed.

In carrying out the present invention, the air circulation fan 6 is
For example, the mounting position of the fan 6 can be changed in various ways, such as installing it in the exhaust case 9.

Further, in constructing the heat storage body 3, various types of heat storage agents having different phase change points can be used depending on the object of use, and various types of storage bodies can also be used.

Also, if the heat storage case 4 is installed inside the greenhouse, it may be possible to suppress heat radiation to the outside of the greenhouse 1, but the heat storage case 3 may be installed outside the greenhouse 1, and in that case, the heat storage case 3 may be installed outside the greenhouse 1. It is a good idea to provide

Note that although numbers are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the temperature control device for a greenhouse according to the present invention, and FIG. 1 is a front view showing how the temperature control device is installed in a greenhouse, FIG. 2 is a partially cutaway front view of the temperature control device, and FIG. The figure is a plan view showing how the heat storage bodies are juxtaposed, FIG. 4 is a perspective view showing the support structure of the heat storage body, and FIG. 5 A and B show another embodiment. It is a side view showing the support structure of the heat storage body. 1...Greenhouse, 3...Heat storage body, 4...Heat storage case, 4a...Divided case part, 5...Air intake port, 7...Air intake case, 8...Air release port, 9...Exhaust Case for.

Claims (1)

[Scope of Claims] 1. A heat storage case 4 is provided in which a plurality of heat storage bodies 3 storing a heat storage agent utilizing latent heat are arranged side by side to form an air flow passage S between adjacent ones, and an air suction case 4 is provided. An air suction case 7 for supplying the air inside the greenhouse 1 taken in from the opening 5 to the heat storage case 4 is provided at the upper part of the heat storage case 4, and the air from the heat storage case 4 is introduced into the greenhouse 1. This is a temperature control device for a greenhouse, in which an exhaust case 9 equipped with an outlet 8 for discharging gas for reduction is provided at the lower part of the heat storage case 4, and the heat storage body 3 is configured in a plate shape. is installed in a standing position on the divided case portions 4a constituting the heat storage case 4, and the heat storage case 4 is in a state in which the air flow passage S communicates vertically with the plurality of divided case portions 4a. A temperature control device for a greenhouse, characterized in that the temperature control devices are arranged one above the other so that they can be separated from each other or assembled together. 2. The temperature control device for a greenhouse according to claim 1, wherein the heat storage body 3 is provided with a plate-shaped container 3A for storing a heat storage agent.