JPH07255279A - Execution method for raising and growing seedling - Google Patents

Abstract

PURPOSE:To provide a facility and engineering method for raising and growing seedlings in a large area, having durability and mechanical strength and capable of making a temperature distribution over all the area uniform with a structure of reduced energy comsumption. CONSTITUTION:A carbon plane heater A having an insulated and waterproof structure and a width of more than 1/3 of an inside area, which is installed at the inside of a resinous pipe 1 buried in a soil. By turning electricity on, a temperature in a space inside the pipe is elevated by a filled heat, and a control of the temperature is conducted by the command of a controller according to a heat sensitive sensor 4 installed in the space inside the pipe to adjust a temperature of the soil. Further, to generate heat in the soil at a surface of striking roots, a heat insulating material B is placed between the bottom of pipe heater and the soil. The above heat generating pipe heaters have a structure capable of connecting with each other in accordance with an objective area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for enforcing and growing seedlings of grass such as a pipe house having a large area, a soccer field and a golf course requiring a mechanical load in a large area.

[0002]

2. Description of the Prior Art Conventionally, there is a method of circulating hot water or hot air in a pipe as a method for producing geothermal heat by a pipe method, but all of them have a problem in uniform heat distribution over a wide surface, and joints of pipes are clogged with water stains. There are many causes, and the fuel economy of boilers is high economically.

[0003]

[Problems to be Solved by the Invention] A large area of farmland, soccer field, etc. requires a heater structure having a strength that can be used for machines such as tractors. Furthermore, the array structure and heat that does not affect the infiltration of sprinkling underground are wide. It must be able to be evenly distributed over the entire area, yet energy saving, safety and workability must be good.

[0004]

A structure which is buried in a ground of 20 to 30 cm and which takes into consideration mechanical load, water distribution, durability and the like is optimally a cylindrical type and connectable structure. The present invention is to provide a long and uniform carbon heat generating sheet, generate a muffled temperature of 30 to 50 ° C. inside a cylindrical pipe, and provide geothermal heat along the underground pipe and the ground surface. For the rise of the muffled temperature in the pipe, a sheet-shaped heating element is used, which provides durability, waterproofness and safety with a high resistance (energy saving) resistor. For the temperature control necessary for the growth temperature, a construction method is used in which a temperature sensor is placed inside the cylinder and adjusted by a controller.
To apply a large area, use a pipe-type heating element up to 50M
100M and buried in the ground 30cm, pipe spacing 30
Pipes are arranged in parallel at a pitch of about 50 cm, and the temperature sensor inside the pipe is housed in a pipe that traverses with a structure that can be connected, and the end is connected to a controller and controlled. Furthermore, in order to effectively bring geothermal heat to the rooting surface, the method of providing a heat insulating material suitable for the size of the pipe on the lower surface of the pipe is the best.

[0005]

[Working] At a golf course and a soccer field, it is necessary to grow grass in winter, and sows are sown by alternating winter grass and summer grass. It is necessary to have a heater structure that allows water distribution so that geothermal heat is not rooted at 10 to 20 ° C, and that strength, energy saving, durability, safety, control surface, etc. that can handle the load of a tractor etc. are sufficiently cleared. . The application of the muffled temperature, which is a feature of the present invention, is not only a low running cost, easy to implement, but also a uniform temperature throughout the wide surface pipe, and it is also a leak current prevention structure.

[0006]

EXAMPLE FIG. 1 is a cross-sectional view of an embedded pipe heater.
An insulating and waterproof carbon surface heating sheet A is built in a resin cylindrical pipe 1 and then a waterproof lid 2 is fixed. Further, one of the lids 2 is provided with a cylindrical pipe 5 and a hole 3 into which the temperature detecting sensor 4 can be inserted, and the pipe 5 is connected to a pipe 6 for protecting a sensing line. Further, in order to disperse the pipe temperature to an effective temperature for the rooting surface, the heat insulating material B is spread over the lower surface of the pipe 1. FIG. 2 is an arrangement diagram in which pipe heaters are laid on a golf course, a soccer field, and the like. The distance between the pipes 1 is 30 to 50 cm and the length is 30 to 50 cm.
M long connecting pipe. Furthermore, by connecting the pipes 5 and 6 containing the heat-sensitive wire, a construction that can be applied even in a large area can be obtained. The temperature sensor 4 is controlled by the controller 7 and is a centralized control system so that the temperature does not become abnormal.

[0007]

EFFECTS OF THE INVENTION According to the present invention, since the entire long pipe generates a uniform mist temperature, there is no temperature unevenness even when connected to a large area. Furthermore, the carbon surface heating element has a higher temperature than nichrome wire and hot water. It has an energy-saving structure and excellent durability and safety. The leak current is good because there is a gap between the pipes, and it is a system that can withstand the mechanical load of a tractor, etc.

[Brief description of drawings]

FIG. 1 is a sectional view of a buried pipe heater.

[Fig.2] Plan view of pipe arrangement

[Explanation of symbols]

 A carbon surface heating element B heat insulating material 1 cylindrical pipe 2 lid 3 insertion hole 4 heat sensitive sensor 5 connection protection pipe 6 heat sensitive wire collecting pipe 7 controller

Claims (1)

[Claims] 1. An insulating and waterproof carbon surface heating element having a width of ⅓ or more of the inner area is built into the inner surface of the resinous cylindrical pipe in a long length, or heat is retained in the space inside the pipe by using a heating wire. Generate. It generates a muffled heat in the pipe space buried in the ground, the temperature control has a built-in heat sensitive sensor, and it is a standard pipe with a structure that can be adjusted by the controller, and a heat insulating material is installed on the lower surface of the pipe to provide effective heat to the root surface generate. A method for raising and raising seedlings of plants with an energy-saving structure that can be connected to a long length of the heating pipes in parallel because it can be applied to a wide area such as soccer fields and golf courses.