JP3314798B2 - Ground temperature / aeration control equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground temperature / aeration control system.

[0002]

2. Description of the Related Art In general, turf is broadly classified into two types, a warm turf and a cold turf. Under the climate of Japan, a warm turf is dormant in winter and exhibits yellow ripening, and a cold turf is in summer. It is vulnerable to the high temperature and high humidity, and is dormant in summer, its growth is deteriorated, and the occurrence of disease is remarkable. In northern Japan, cold-season turf is strong in winter but it is difficult to maintain sufficient characteristics.

[0003]

For this reason, turf varieties capable of anniversary greening are being bred, but the growth amount, turf formability and the like are not sufficient. In addition, there is an overseasing method of sowing cold-season turf seeds in autumn when the warm-season turf seeds turn yellow, and then dying them in the early spring to grow warm-season turf seeds again. There are problems such as a problem and a burden on maintenance. In addition, warm water in winter,
In summer, a method has been devised to control the soil temperature by chiller pump method using chilled water to increase the degree of greening and utilization of turf's anniversary, but it takes enormous costs to make and maintain equipment There was a problem. In addition, it is extremely important for healthy growth of turf not only to control the soil temperature but also to avoid aeration, soil and ground over-humidification.

[0004] The present invention has been made in view of such a problem, and an object of the present invention is to provide a ground temperature / aeration control facility which is easy to maintain and inexpensive.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, a first invention is to provide an air supply means for adjusting the temperature of the air to be supplied and performing the supply, and Air discharging means for discharging air supplied from the air means to the ground surface, and air diffusing means arranged in the ground and diffusing air supplied from the air feeding means into the ground, The air supply means includes an air temperature control chamber made of a transparent material having a light-shielding chamber. In winter, the air whose temperature has risen in the closed air temperature control chamber is increased. In summer, the air temperature control chamber is opened. The ground temperature / aeration control equipment is characterized in that air is taken in from the light-shielding chamber and sent out of the air temperature control chamber.

[0006]

According to the present invention, the temperature of the air to be sent is adjusted,
This air is released to the ground surface and diffuses into the ground.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of a ground provided with a ground temperature / aeration control device according to one embodiment of the present invention. As shown in FIG. 1, turf (turf) 3 is planted on a sand layer (floor soil) 1. An opening 8 is provided at an end of the ground ventilation pipe 5, and a ventilation diffusion pipe 9 is provided in the vicinity of the end in a branched manner. A branch air volume controller 7 is provided at a portion of the ground ventilation pipe 5 where the ventilation diffusion pipe 9 branches. The ventilation diffusion pipe 9 is arranged in the sand layer 1 below the grass 3. Reference numeral 11 denotes a bottom drain pipe.

The ground ventilation pipe 5 is supplied with air from an air supply facility A described later, and this air is discharged from the opening 8 toward the turf 3. This air is heat-exchanged with groundwater and is warm in winter and cold in summer, so that the turf 3 is heated in winter and the turf 3 is cooled in summer. The branch air volume regulator 7 regulates the volume of air supplied to the ventilation diffusion pipe 9.
The amount of ventilation in the ventilation diffusion pipe 9 is adjusted by the branch air volume controller 7.

FIG. 2 is a perspective view of the air diffusion pipe 9. The air diffusion pipe 9 is a mesh-shaped air diffusion pipe having a high gap, and allows hot air to diffuse into the sand layer 1 in winter and cold air to diffuse in the sand layer 1 in summer. The temperature of the sand layer 1 is controlled.

FIG. 3 is a schematic configuration diagram of the air supply equipment A. A well 21 is provided in the ground. 23 indicates groundwater and 25 indicates a well water outlet. A preliminary air temperature control chamber 27 is provided on the ground, and an outside air intake pipe 29 is provided in the preliminary air temperature control chamber 27. The air taken in from the outside air intake pipe 29 is supplied to the heat insulating pipe 31a, the spiral heat conducting pipe 33,
It is sent to the auxiliary heat exchanger 35 via the heat insulating pipe 31b.
The heat-insulating pipe 31b is provided with an intake pump 34, and the auxiliary heat exchanger 35 is connected with a blowing pipe 39. The blower pipe 39 is provided with a blower pressure regulator 37, and the blower pipe 39 is connected to the ground ventilation pipe 5 shown in FIG.

The spare air temperature control chamber 27 is a retractable building made of a transparent material such as acrylic glass, which is closed in winter, the temperature inside the building rises due to solar heat, and the heated air is taken into the outside air. It is taken in from the pipe 29. In the summer, the preliminary air temperature control chamber 27 is opened, and a light shielding chamber (not shown) provided inside the preliminary air temperature control chamber 27.
Air is taken in from outside via an outside air intake pipe 29.

The heat conducting pipe 33 is a metal pipe having high heat conductivity, and performs heat exchange between the air flowing inside and the groundwater 23. The temperature of the groundwater 23 is substantially constant throughout the year, and the air flowing through the heat conducting pipe 33 is heated in winter and cooled in summer. The auxiliary heat exchanger 35 includes a panel heater for warming, a panel heater for cooling, a thermostat, and the like. When the heat exchange with the groundwater 23 is insufficient in a very hot season, a very cold season, or the like, the auxiliary heat exchanger 35 is used to warm or cool the air. I do. The intake pump 34 takes in air from the outside air intake pipe 29 and supplies it to the auxiliary heat exchanger 35 side. The blower pressure regulator 37 adjusts the air pressure flowing through the blower pipe 39.

Next, the general operation of this embodiment will be described. FIG.
The air is taken in the preliminary air temperature control chamber 27 of the air supply equipment A shown in FIG. 1, and this air is supplied to the heat conduction pipe 33 through the outside air intake pipe 29 and the heat insulation pipe 31a, and heat exchange with the groundwater 23 is performed. Done. Generally, the temperature of the groundwater 23 is higher than the outside temperature in winter and lower than the outside temperature in summer, so that the air passing through the heat conducting pipe 33 is warm in winter and cold in summer. This air is sent to the auxiliary heat exchanger 35 via the heat insulating pipe 31b,
If the heat exchange with the compound is insufficient, the mixture is further heated or cooled. Then, the air is sent to the ground ventilation pipe 5 through the ventilation pipe 39, and a part of the air is supplied from the opening 8 to the grass 3.
It is released toward. A part of the air in the ground ventilation pipe 5 is sent to the ventilation diffusion pipe 9,
Is diffused toward the sand layer 1.

As described above, in the present embodiment, the sand layer 1 on which the grass 3 is planted is cooled in summer and humidified in winter.
The growth temperature of the turf 3 can be kept at an appropriate temperature, and the turf 3 can be maintained and grown satisfactorily throughout the year. At this time, by allowing the temperature-adjusted air to flow through the sand layer 1, it is possible to quickly and surely control the ground temperature. In addition, 1
The heat exchange with the groundwater 23 having a substantially constant temperature throughout the year can moderately control the ground temperature of the sand layer 1.

Also, aeration can be performed simultaneously with the ground temperature control on the turf 3, and the effect of maintaining the vitality of the root of the turf 3 can be enhanced. In addition, it is possible to prevent diseases caused by overhumidity of the turf 3, to reduce the amount of pesticides used, and to conserve the environment. Further, by performing aeration, it is possible to suppress over-humidification of the sand layer 1, and it is possible to prevent over-humidification of the turf leaf surface and the root of the plant, which cause disease.

In the winter season or the like, the lawn 3 can be covered with a thin cloth for keeping heat as required. FIG. 4 is an explanatory diagram in the case where the grass 3 is covered with a heat insulating cloth 41, and FIG. 5 is a view in the direction of arrow A in FIG. On the surface of the sand layer 1, a winding roller 43 around which a heat insulating cloth 41 is wound is installed. The heat insulating cloth 41 is a lightweight nonwoven fabric, a vinyl sheet, or the like, and a self-propelled wheel 45 is provided at an end of the heat insulating cloth 41. Reference numeral 47 denotes a transmission line supporting tape for driving the self-propelled wheels.

The self-propelled wheels 45 self-propelled in the direction B in FIG. The heat insulating cloth 41 covers the turf 3 at a height of about 10 to 15 cm from the ground. When the heat insulating cloth 41 is wound, the heat insulating cloth 41 is
Is moved in the C direction and wound up. The self-propelled wheels 45 and the take-up roller 43 are driven by a timer.

By covering the turf 3 with the heat insulating cloth 41,
The growing temperature of the cultivation increases, and greening is possible even in winter. Covering the lawn 3 with the heat insulating cloth 41 in this manner is particularly effective at night in winter or during cloudy weather.

Although the above embodiment has been described with reference to turf, the present invention can also be applied to cultivation facilities for vegetables, horticultural plants and the like.

[0020]

As described in detail above, according to the present invention, grass and the like can be greened all year round. In the heat exchange, natural energy is used, so that resources can be saved and costs can be reduced. further,
The soil temperature control and aeration can be easily performed at the same time, pesticides can be saved, and the maintenance and management of turf etc. is also easy.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a sand layer 1

FIG. 2 is a perspective view of a ventilation diffusion pipe 9;

FIG. 3 is a schematic configuration diagram of an air supply facility A;

FIG. 4 is an explanatory diagram of a case where the grass 3 is covered with a heat insulating cloth 41.

5 is a view in the direction of arrow A in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Sand layer 3 ... Turf 5 ... Grounding ventilation pipe 7 ... Branch air flow regulator 8 ... Opening 9 ... Ventilation diffusion pipe 21 ... Well 23 ... Groundwater 27 ... Preliminary air temperature control chamber 29 External air intake pipe 33 Heat conduction pipe 34 Intake pump 35 Auxiliary heat exchanger 39 Blower pipe 41 Heat insulation cloth 43 … Take-up roller 45 ……… Self-propelled wheels

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masayuki Yanagi 2-9-1-1, Tobita-cho, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Inventor Hiroki Sawada 2-1-1, Tobita-shi, Chofu-shi, Tokyo No. Kashima Construction Co., Ltd. Technical Research Institute (56) References JP-A-5-111328 (JP, A) JP-A-48-67023 (JP, A) Japanese Utility Model Showa 55-25448 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01G 7/00 601 A01G 13/02

Claims (3)

(57) [Claims] An air supply means for adjusting the temperature of air to be supplied to perform air supply; an air discharge means arranged on the ground for discharging air supplied from the air supply means to the ground surface; A diffuser arranged in the ground to diffuse air supplied from the air supply means into the ground, the air supply means includes a transparent material air temperature control chamber having a light shielding chamber. and, winter air, the air temperature rises in an enclosed the air temperature adjusting chamber, summer takes in air from the shielding chamber opened the air temperature adjusting chamber to the air temperature regulating outdoor Geothermal and aeration control equipment characterized by the following: Wherein said air supply means, and the air temperature adjusting chamber and the auxiliary heat exchanger, comprising a well in the ground, with the air temperature adjusting chamber and the auxiliary heat exchanger is a pipe through the inside of the well The pipe is an adiabatic pipe outside the well, a helical heat exchange pipe inside the well, external air is taken in the air temperature control chamber,
The outside air is heat exchanged through the well;
The ground temperature / aeration control equipment according to claim 1, wherein the temperature of the air to be sent is adjusted by being sent to the auxiliary heat exchanger. 3. A self-propelled wheel is provided at an end, and a heat insulating cloth wound around a take-up roller is provided, wherein the self-propelled wheel self-propelled and covers the turf on the ground surface with the heat insulating cloth, 2. The ground temperature / aeration control equipment according to claim 1, further comprising: means for winding the heat insulating cloth with a winding roller when winding the heat insulating cloth.