KR101081461B1 - The Ground Heating System for Turf Athletic Field in Winter Season, The Method of Installing The Same and The Heating Method thereof - Google Patents

Abstract

The present invention relates to a ground heating system and a method for installing the ground and a method of heating the ground by the ground heating system for smooth grass growth in winter, more specifically, the heating cable and temperature sensor embedded in the ground near the root of the grass And a power control unit that supplies or cuts electrical energy to the heating cable according to the sensed temperature, and effectively transmits heat to the ground near the roots of grass by perforating insulation and wire mesh so that grass can grow normally even in winter. The present invention relates to a system and a method of installing the same, and a method of heating the ground with a ground heating system.

Grass, winter, heating cable, wire mesh, growth

Description

 The ground heating system for turf athletic field in winter season, the method of installing the same and the heating method

The present invention relates to a ground heating system, a method for installing the ground, and a ground heating method for smoothing grass growth in winter, and more particularly, to construct a heating system in the ground of a place where grass is used, such as a grass field or golf course. It is about a technology that can create a green lawn.

In order to create a pleasant living environment and to expand the urban living space, the lawn recording method has been actively studied. However, in the case of winter green, turf growth is poor and leaf color fades during the cold season, resulting in poor grass quality.

As a means to prevent this, soccer field fields and the like have been suggested to prevent the freezing of soil and keep the grass green during the winter season by heating the hot water circulation pipe in the ground.

In other words, look at the configuration of the four-season grass recording system according to the Republic of Korea Patent Publication No. 2002-91907 (four seasons grass recording system), the PVC waterproof sheet and vinyl on the floor of the sidewalk block to form a waterproof layer, and then made a drainage layer with Schiropol drain plate This is achieved by using a nonwoven fabric to create a fine particle filter layer, installing a hot water pipe connected to an oil boiler, laying down a mixture of pearlite and peat moss on artificial ground, sowing grass, and growing grass on the system.

This greening system uses artificial soil mixed with pearlite and peat moss as artificial ground to install hot water pipes 25cm underground and heat the ground using oil boiler heating system to prevent freezing of grass ground and to maintain root growth continuously. That is, even in winter, you can create a green lawn.

However, the four-season grass recording system as described above is an invention disclosed without considering high energy costs as a means for simply heating the ground.

As another means, there is provided a technique for installing the ondol in the grass-planted soil, but this technique has been pointed out as a problem of high price and construction complexity of the ondol.

The present inventors have thus come up with a method for growing green grass in four seasons with minimal energy consumption.

The present invention has been proposed to solve the above problems, buried in a certain depth in the ground portion of the heating cable (heating cable) for dissipating heat and embedded in the ground near the ground where the root of the grass is located to sense the temperature It is connected to the sensor and the temperature sensor and has a power control unit for supplying or cutting off the power by comparing the temperature detected by the temperature sensor and the preset temperature, the air permeable insulation for water draining and the heat of the heating cable is the root of the grass To provide a ground heating system including a wire mesh (wire mesh) to be evenly distributed to the ground to be located, and its installation method and ground heating method using the same.

In order to achieve the above object, the present invention, a heating cable embedded in the ground portion to a predetermined depth to dissipate heat; A power supply unit for transferring electrical energy to the heating cable; A temperature sensor which is buried near the ground where the root of the grass is located and senses the temperature; A power control unit connected to the temperature sensor and supplying or cutting off power by comparing a temperature detected by the temperature sensor with a preset temperature; A power connection unit connecting the power control unit and the heating cable and transferring electric energy supplied from the power supply unit to the heating cable; A perforated heat insulating material positioned at a lower ground portion of the heat generating cable to prevent the heat generated by the heat generating cable from being dispersed, and having a porous portion for drainage; And a wire mesh embedded in the upper ground portion of the heating cable so as to evenly transfer heat of the heating cable to the ground where the root of the grass is located.

In addition, there is provided a ground heating system having at least one heating cable fixture to ensure that the heating cable is firmly bound to the ground.

In addition, the outer portion of the heating cable is made of a heat-resistant PVC and the heat-resistant PVC inside provides a ground heating system formed of heat-resistant silicon containing wires and heating wires.

On the other hand, the present invention to achieve the above object, (a) embedding the perforated heat insulating material at a predetermined depth of the ground portion; (b) installing a heating cable in the upper ground portion of the perforated insulation; (c) installing a wire mesh on the upper ground of the heating cable; (d) installing a temperature sensor near the ground where the roots of the grass are located; (e) connecting a power control unit which supplies or cuts power to the heating cable by a temperature sensed by the temperature sensor and the temperature sensor; And (f) connecting a power supply unit for supplying electrical energy with the power control unit, and installing a power connection unit for connecting the heating cable and the power control unit.

In addition, the perforated insulation of the step (a) provides a method of installing a ground heating system comprising the step of forming a porous portion to be drained.

In addition, the step (b) is a ground heating system further comprises the step of fixing the heating cable and the ground portion with at least one heating cable fixture to prevent the heating cable and the ground portion is detached and to solidify the bond Provides an installation method.

 The ground heating system and ground heating method for facilitating the grass growth in winter in accordance with the present invention by supplying the appropriate heat to the ground near the roots of the grass even in winter, it is possible to smoothly grow the grass even in winter .

That is, the present invention is to supply power to the heating cable in accordance with the temperature detected by the temperature sensor and the temperature sensor for detecting the temperature of the ground portion near the root of the grass and the heating cable buried at a certain depth of the ground portion by the input voltage As the power control unit, the temperature near the root of the grass is maintained at a suitable temperature for the grass to grow even in winter, so that the grass can grow green even in the winter, and it is possible to block the growth of weeds that are weak to heat, thereby reducing the damage of the grass caused by the weeds. .

In addition, the present invention by installing a wire mesh (wire mesh) in the upper ground of the heating cable, even if the grass is distributed in a large area can be evenly heat transfer, it is possible to heat the ground at low power.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a structural diagram of a ground heating system according to the present invention, Figure 2 is a structural diagram of a heating cable according to the present invention.

First, as shown in FIG. 1, the present invention includes a heating cable 10, a power supply unit 80, a temperature sensor 40, a power control unit 30, a power connection unit 20, a porous insulation material (not shown), and a wire mesh. Geothermal heating system comprising (50).

The present invention is to supply the electrical energy supplied from the power supply unit 80 to the power connection portion 20 connected to the heating cable 10 to heat the ground by converting the electrical energy into heat energy in the heating cable 10. . The power supply unit 80 is a point for supplying power, preferably a frequency of 50 Hz or more and 60 Hz or less and a power supply of 220 V (Volt). This is because our power source is AC 220V, 60Hz, so it can be easily applied. However, various power sources may be used depending on the level of heat required and the supply power source used. AC has the advantage that the voltage can be freely changed at any time by using only a transformer, it is also preferable to have a transformer in the power connection portion 20. In addition, the use of an AC power source has the advantage of less electrochemical action, such as poor wire corrosion. Since the heating cable 10 is a kind of heater, it is preferable to use AC power directly to the heating cable 10. However, a converter for converting the AC power into DC power may be used in the power connection unit 20.

The converter refers to a rectifier circuit, in which half-wave rectifier circuits, full-wave rectifier circuits, bridge rectifier circuits, and double-voltage rectifier circuits may be used. The half-wave rectifier circuit is a circuit in which a direct current flows through the load by using only a rectifier element such as a diode to flow a positive or negative cycle of alternating current. The rectifier is also rectified and a DC current flows through the load. The bridge rectifier circuit is a type of full-wave rectifier circuit, in which four diodes are connected in a bridge shape and rectified. In addition, the double voltage rectifier circuit is a rectifier circuit designed to obtain a DC output voltage almost twice the maximum value of the input AC voltage, and can be divided into a half-wave double voltage rectifier circuit and a full-wave double voltage rectifier circuit.

The structure of the heating cable will be described with reference to FIG. 2. The heating cable 10 is formed of a second heat resistant material 200 in which an outer portion is formed of the first heat resistant material 100 and in which the heating wire 200 and the electric wire 300 are inserted. Heating wire 400 is preferably 220V / 150W power consumption of the thermal sensing type by nylon resin. The second heat resistant material 200 is preferably made of a heat resistant silicon material. The second heat resistant material is preferably made of silicon rubber and compound material having heat resistance, and by optimizing the type and amount of oxide to be added to increase the heat resistance, it can withstand temperatures of about 300 degrees Celsius. It can be achieved by optimally combining the cargo with the glass, which is an amorphous composite oxide.

The first heat resistant material 100 is preferably a heat resistant PVC for 105 degrees Celsius in consideration of the heat generation temperature of the heating wire 400 and the second heat resistant material 200. However, the heating cable 10 can be used freely within a range without departing from the common knowledge of those skilled in the art in accordance with a suitable temperature for heating the ground near the root of the grass.

Referring back to Figure 1, it can be seen that the present invention is provided with a wire mesh (50). Wire mesh 50 is a device for heat conduction in the form of a mesh. That is, the heat generated from the heating cable 10 is conducted along the wire mesh 50 by using a metal having high thermal conductivity. By supplying low power to the heating cable 10 by such a wire mesh 50, heat can be evenly transferred to the ground of a wide range. In consideration of such characteristics, it is preferable that the material of the wire mesh 50 is one of galvanized iron wire, stainless steel, or an alloy of copper and aluminum. However, in consideration of thermal conductivity, it is also possible to use a variety of metals and alloys without departing from the common knowledge of those skilled in the art.

The invention also includes a temperature sensor 40. The temperature sensor 40 is installed embedded in the ground in the vicinity of the root of the grass. Therefore, at any time of the four seasons, it is possible to detect the temperature of the ground portion, thereby allowing the power supply control unit 30 to determine whether heat dissipation in the heating cable 10 is required. That is, the temperature sensor 40 transmits the detected ground temperature to the power control unit 30, and the power control unit 30 compares the set temperature of the proper range required for the growth of the grass to the predetermined temperature range. If it does not reach to control electric energy is transferred to the heating cable (10). The temperature sensor 40 is preferably provided with at least one, in the ground heating system. This is because by providing several temperature sensors 50, it is possible to make an average judgment on the temperature of a wide range of ground parts and thus determine whether or not to supply electric energy.

In addition, in the present invention, the ground heating system is preferably provided with a porous insulation (not shown). The perforated insulation material is embedded in the lower ground of the heating cable 10 and is installed at the lower ground of the grass to prevent the heat generated from the heating cable 10 from escaping to the lower ground of the ground. It is a device that improves thermal efficiency by transmitting. Insulation materials are largely divided into organic and inorganic materials, and organic materials include cork, felt, cork carbide, and foam rubber, and are suitable for use at about 150 degrees Celsius or less. Asbestos, glass wool, quartz, magnesium carbonate powder, magnesia powder, calcium silicate, pearlite and the like are used, and most of them can withstand the use at high temperatures. These are the limits of softening and decomposition temperature of each material.

Most of the insulation used at more than 1,000 degrees Celsius is a refractory brick made by combining the refractory into a porous shape. In this case, in addition to thermal conductivity, thermal expansion rate, shrinkage rate, and the like are required. In the present invention, the porous insulating material is preferably made of any one of polyethylene foam, polyurethane foam, polystyrene.

In the present invention, it is preferable to use a perforated material. This is because the ground drainage (water drainage) must be considered. Therefore, it is preferable to use a heat insulating material made by combining the refractory to a porous shape. If it is not a porous insulating material, it is preferable to form the perforation part which can smoothly drain by an artificial method.

 3 is a cross-sectional view showing a state in which the ground heating system according to the present invention is located on the ground. Hereinafter, an embodiment of the present invention will be described with reference to FIG. 3.

First, the user selects the location where the grass is to be planted, and embeds and installs the perforated insulation 60 in the ground of a certain depth. Next, the heating cable 10 is buried away by a predetermined distance from the perforated insulation 60 in the upward direction. At this time, the perforated insulation 60 is not necessary for the case of a porous heat insulating material, but if it is not a porous heat insulating material, it is preferable to form a perforated part for perforating water by perforating. The heating cable 10 has a shape in which the Hangul consonants 'ㄹ' are repeated, and the long axis of the closest position is preferably spaced at a distance of 12 cm based on one long axis. In addition, the heating cable 10 is preferably buried at a distance of about 20cm from the ground where the root of the grass is located, the spacing and embedding depth of the heating cable 10 is the type and characteristics of the grass, where the ground is The distance can be adjusted accordingly, taking into account the effects of climate and power consumption.

Next, it is preferable that the heating cable 10 is fixed by the heating cable fixing unit so as to be firmly bound to the ground. This serves to prevent the ground and the heating cable 10 from the original position by the earthquake and ground variations. It is preferable that the number of heating cable fasteners be more firmly bound to the ground. Heating cable fixtures can be used in various ways as long as they have heat resistance to withstand the heat of the heating cable, such as PVC tie or insulating tape.

The heating cable 10 is connected to the power connection unit 20 and the electrical connection from the power supply connection unit 20 to the power control unit 30 by electric wiring to transfer the electric energy supplied from the power supply unit 80 to the heating cable 10. To help.

Next, the wire mesh 50 is embedded at a predetermined distance from the heating cable 10 in the upward direction. And the temperature sensor 40 is buried near the ground portion 70 where the root of the grass is located. Although a single number is shown in the figure, the temperature sensor 40 may include a plurality of temperature sensors to detect the temperature of each ground location and calculate their average temperature.

The temperature sensor 40 and the power control unit 30 are connected to transfer the temperature sensed by the temperature sensor 40 to the power control unit 30, and the power control unit 30 has a temperature range suitable for the growth of a predetermined grass and the When the temperature sensor 40 compares the temperature notified and does not reach the set temperature, electric energy from the power supply unit 80 flows to the power connection unit 20 so that the heating cable 10 generates heat.

In another aspect, the present invention provides a ground heating method for smooth grass growth in winter.

4 is a block diagram of a method for installing a ground heating system according to the present invention.

Referring to Figure 4, buried perforated insulation in the ground (S1 step); Installing the heating cable in the upper ground of the perforated insulation (step S2); Install wire mesh on the upper ground of the heating cable (step S3). Then install a temperature sensor on the ground near the root of the grass (step S4) and connect the temperature sensor and the power control unit (step S5). Next, the ground heating system according to the present invention can be installed by connecting the power supply unit and the power control unit (step S6) and then installing the power connection unit connecting the heating cable and the power control unit (step S7).

In addition, when the heat insulating material is not porous before the step S1, it may be perforated to form a perforated part so that water may be drained. In addition, the shape of the heating cable before the execution of step S2 can be installed in a shape that repeats the Hangul consonants 'ㄹ'. Here, the heating cable is preferably formed at a distance of 12 cm from the longest axis nearest to one long axis, but there is no particular limitation as described above.

On the other hand, it is preferable to firmly fix the heating cable and the ground in the vicinity of the heating cable buried before the execution of the step S3. This is to prevent the heating cable from deviating from its original position due to the earthquake and the change of the earth's crust. Heating cable fixtures can be used in various ways as long as they have heat resistance to withstand the heat of the heating cable, such as PVC tie or insulating tape. The heating cable fastener is used at least one or more preferably to secure the binding of the heating cable and the ground.

It explains how to heat the ground with the ground heating system installed in this way.

 The temperature sensor senses the temperature of the ground where the roots of the grass are located and transmits it to the power control unit. The power control unit compares the growth temperature range of the grass with the temperature detected by the temperature sensor. At this time, if the detected temperature is within the growth temperature range of the grass set in the power controller, the power controller does not issue any command.

On the other hand, when the detected temperature does not reach the growth temperature range of the grass set in the power control unit, the power control unit transmits the electric energy supplied from the power unit to the power connection unit, and generates heat from the heating cable connected to the power connection unit. The heat dissipated in this way is prevented from being wasted at the lower end of the ground due to the perforated insulation, so that the heat can be transmitted to the ground near the root of the grass with high efficiency.

Heat emitted from the heating cable is transferred to the wire mesh located at the upper ground portion of the heating cable, and the wire mesh conducts heat along the mesh shape of the wire mesh. In this way, heat can be evenly transmitted to the grass grown over a wide range.

The above embodiments are only intended to illustrate the present invention, and those skilled in the art to which the present invention pertains have various modifications of the above-described embodiments within the scope of the technical idea derived from the matters described in the appended claims. It will be appreciated that modifications and applications are possible.

1 is a structural diagram of a ground heating system according to the present invention,

2 is a structural diagram of a heating cable according to the present invention;

3 is a cross-sectional view showing a state in which the ground heating system according to the present invention is located on the ground,

4 is a block diagram of a method for installing a ground heating system according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: heating cable 60: perforated insulation

20: power connection 70: ground near the root of the grass

30: power control unit 80: power supply

40: temperature sensor 100: first heat resistant material

50: wire mesh 200: second heat resistant material

300: wire 400: heating wire

Claims (15)

In the ground heating system for smooth grass growth in winter, It is a heating cable (heatingcable) that is buried at a certain depth in the ground to radiate heat, and the Hangul consonants 'ㄹ' are repeated, and the longest axis is located at a distance of 12cm based on one long axis. Heating cable; A power supply unit for transferring electrical energy to the heating cable; A temperature sensor which is buried near the ground where the root of the grass is located and senses the temperature; A power control unit connected to the temperature sensor and supplying or cutting off power by comparing a temperature detected by the temperature sensor with a preset temperature; A power connection unit connecting the power control unit and the heating cable and transferring electric energy supplied from the power supply unit to the heating cable; A perforated heat insulating material positioned at a lower ground portion of the heat generating cable to prevent the heat generated by the heat generating cable from being dispersed, and having a porous portion for drainage; And It is made of one of galvanized iron wire, stainless steel, copper and aluminum alloy, the wire embedded in the upper ground portion of the heating cable to evenly transfer the heat of the heating cable to the ground where the root of the grass is located Geothermal heating system including wire mesh. The method of claim 1, The heating cable is ground heating system, characterized in that the binding to the ground portion by the heating cable fixture to prevent the heating cable and the ground portion is separated and secure the binding. 3. The method of claim 2, The heating cable fixture is a ground heating system, characterized in that provided with at least one number. The method of claim 1, The heating cable includes a first heat resistant material constituting the outer portion; And Located in the first heat resistant material, the ground heating system, characterized in that formed of a second heat resistant material including a wire and a heating wire. The method of claim 4, wherein And wherein the first heat resistant material is a heat resistant PVC and the second heat resistant material is a heat resistant silicone. delete delete 3. The method of claim 2, The heating cable fixture is a ground heating system, characterized in that the PVC tie or insulating tape. The method of claim 1, The perforated insulation is ground heating system, characterized in that formed of any one of polyethylene, polyurethane foam and polystyrene. In the installation method of the ground heating system for smooth grass growth in winter, (a) embedding perforated insulation at a predetermined depth in the ground portion; (b) installing a heating cable in the upper ground portion of the perforated insulation; (c) installing a wire mesh on the upper ground of the heating cable; (d) installing a temperature sensor near the ground where the roots of the grass are located; (e) connecting a power control unit which supplies or cuts power to the heating cable by a temperature sensed by the temperature sensor and the temperature sensor; (f) connecting the power supply unit for supplying electrical energy with the power control unit; And (g) a method of installing a ground heating system comprising the step of installing a power connector connecting the heating cable and the power control unit. The method of claim 10, The perforated insulation of step (a) is the installation method of the ground heating system, characterized in that it comprises the step of forming a porous portion to be drained. The method of claim 10, The step (b) further comprises the step of fixing the heating cable and the ground portion with at least one heating cable fixture to prevent the heating cable and the ground portion is detached and to solidify the installation of the ground heating system, characterized in that Way. The method of claim 10, The step (b) is the installation method of the ground heating system, characterized in that further comprising the step of forming the shape of the heating cable is repeated Hangul consonant 'ㄹ'. The method of claim 13, The heating cable is installed in the ground heating system, characterized in that the long axis of the closest position based on one long axis is formed at intervals of 12cm. A ground heating method using the ground heating system according to any one of claims 1 to 5.

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