KR101145611B1 - Snow melting system and operating method using smart geothermal heatpump - Google Patents

Abstract

The present invention relates to an intelligent snow melting system using a geothermal heat pump which can prevent the safe driving of a vehicle and the sliding accident of a pedestrian when it snows or freezes on a road, and a method of operating the same.
The intelligent snow melting system using the geothermal heat pump according to the present invention, a geothermal heat pump composed of the first and second heat exchangers, compressors, four-way valves and expansion valves, underground heat exchangers buried in the ground, underground heat exchangers and second heat exchangers The first line through which the heat transfer medium circulates, the first heat exchanger installed on the opposite side of the second heat exchanger, and the heat source, and the second line through which the heat transfer medium circulates and the entire system. A geothermal heat pump system comprising an automatic control panel, comprising: a plurality of three-way valves or two-way valves installed in a second line; Third and fourth lines branching from the three-way valve; A first heat dissipation pipe disposed between the third line and the fourth line, one end of which is connected to the third line and the other end of which is connected to the fourth line; It is configured to include. In addition, one end is connected to the third line and the fourth line, respectively, the other end is configured to further include a second heat dissipation pipe connected to the fifth line, the third line and the fourth line is provided with a flow rate control valve, An inverter pump is installed in the second line, and heat exchange medium (antifreeze) flows in the first and second heat dissipation pipes.

Description

Intelligent snow melting system using geothermal heat pump system and its operation method {SNOW MELTING SYSTEM AND OPERATING METHOD USING SMART GEOTHERMAL HEATPUMP}

The present invention relates to a system for melting snow or preventing freezing of a road by using geothermal heat, and more particularly, to a safe driving of a car and preventing a pedestrian accident when a snow falls on a road or freezes. The present invention relates to an intelligent snow melting system using a geothermal heat pump and a method of operating the same.

In general, in case of a road frozen in winter, congestion of the vehicle occurs, and the sliding of the road causes more than four times the traffic accident compared to the normal road surface.To solve this problem, spray snow removal agent such as calcium chloride to remove the road surface. It prevents slipping. However, if snow spray is applied to the road to prevent slippage, the maintenance cost of manpower and equipment mobilization for this is increased, the problem of environmental pollution that the snow remover penetrates into the crack of the road and pollutes the land, the road durability due to corrosion It causes weakening and corrosion of the vehicle.

In particular, there are serious problems such as traffic accidents due to freezing of roads due to the lack of fundamental snow removal methods for road steep slopes, overpass ramps, rampant mountain roads, tunnel entrances and parking lot ramps. to be. Therefore, there is an urgent need for snow removal methods to prevent freezing of roads as a new and environmentally friendly means to secure the safety of pedestrians and vehicles.

1 relates to a conventional road snow melting technology, in which a snow melting coil using electric heating wire and geothermal energy is installed in a road surface. As an example for preventing road surface freezing using electric heating wires, Korean Patent Application Publication No. 2000-30642 discloses a road surface freezing prevention system and a construction method thereof. The road surface frost prevention system includes an internal heating element and an external heating element with a built-in heating wire, an artificial intelligence sensor connected to these internal and external heating elements by a connecting line, and detecting the environment of the road and transmitting the detected environment to the central computer. It consists of a central voltage regulator that automatically regulates the heating wire, which is expensive to install and maintain, high power consumption, short circuit, damage, deterioration and short life due to the problem of low insulation resistance of electric heating wire. There is a serious problem.

Another technique that uses geothermal energy to melt snow accumulated on the road or prevent freezing of the road surface is a device for preventing road surface freezing using geothermal heat of Patent Registration No. 10-0394555, which is buried vertically in the ground of the road. A heat dissipation unit is provided with a main body having a hollow portion through which a heat transfer medium flows, and a heat dissipation portion through which the heat transfer medium heated by geothermal heat enters and dissipates heat. The method also uses geothermal heat, which is simpler in structure and lower in cost of construction and maintenance than the heating method, but delivers sufficient heat to melt and remove snow or road ice on the road in a short time. There is a problem that is difficult to do.

The present invention has been made to solve the above problems, an object of the present invention, by embedding a heat dissipation tube in a paved road, parking lot, lower part of the sidewalk, passing through a warm antifreeze of about 50 ℃ or more warmed with a geothermal heat pump It is to provide a snow melting system using the geothermal heat pump system and its operation method by supplying heat to the road surface to melt snow or frozen road surface to ensure safe driving of the car, and prevent the pedestrian from slipping.

Intelligent snow melting system using the geothermal heat pump system according to the present invention for solving the above problems, the first and second heat exchangers (1a, 1b), compressor (1c), four-way valve (1d) and expansion valve (1e) Geothermal heat pump (1) having a), the underground heat exchanger (2) buried in the ground, the ground heat exchanger (2) and the second heat exchanger (1b) is connected, the heat transfer medium is circulated inside A second line 5 connecting the first line 3, the first heat exchanger 1a installed on the opposite side of the second heat exchanger, and the heat demand destination 4, and the heat exchange medium circulating therein; A geothermal heat pump system comprising an automatic control panel for controlling an entire system, comprising: a plurality of three-way valves (10) or two-way valves (10 ') installed in the second line (5); Third and fourth lines 11 and 12 branched from the three-way valve; A first heat dissipation pipe 14 installed between the third line and the fourth line, one end of which is connected to the third line 11 and the other end of which is connected to the fourth line 12; It is configured to include. In addition, one end is further connected to the third line and the fourth line (11, 12), the other end further comprises a second heat dissipation pipe (15) connected to the fifth line 16, the third line and the fourth The flow control valve 13 is installed in the line, the inverter pump 6 is installed in the second line, and the heat exchange medium (antifreeze) flows through the first and second heat dissipation pipes.

Preferably, the lower portion of the first heat dissipation tube, the heat reflecting plate having a "∨" shape in the cross section along the longitudinal direction is provided adjacent to the first heat dissipation plate, the heat insulating plate is further provided below the heat reflecting plate, A heat storage material and a heat transfer material are filled in an upper part of the first heat dissipation tube, and a heat reflecting plate having a "∪" shape in cross section along its longitudinal direction is provided in the lower part of the second heat dissipation tube adjacent to the second heat dissipation plate. Insulation is further installed in the lower part, and the heat storage and heat transfer material is filled in the upper part of the second heat dissipation tube. The second heat dissipation tube may be spaced apart in two rows in accordance with the distance between the left and right wheels of the vehicle, and the second heat dissipation tube installed between the third line and the fourth line may flow in the second heat dissipation tube. The flow direction of the heat exchange medium is configured to be changed.

An operation method of an intelligent snow melting system using a geothermal heat pump system according to the present invention comprises the steps of: receiving weather forecast data of the Korea Meteorological Agency and extracting snowfall start time and snowfall stop time from the weather forecast data; Determining whether the current time is an initial operation time obtained by subtracting a specific time from a snowfall start time; Operating a geothermal heat pump system when the current time has reached the initial operating time; Determining whether it is currently snowing after operating the geothermal heat pump system; Continuing to operate the geothermal heat pump system if it is determined that snow is present at the current time; Determining whether the actual snow has stopped when the current time reaches the snow stop time; Stopping the geothermal heat pump system if it is determined that snow has stopped at the current time; It includes.

Intelligent snow melting system using a geothermal heat pump system according to the present invention having the features as described above,

First, during winter snowfall, the snow accumulated on the road, outdoor parking lot, and sidewalk can be effectively melted by using special structures such as heat sink, reflector, heat insulator, sand layer, heat storage and heat transfer layer to quickly freeze ice.

Second, it can melt snow much more economically than the conventional snow melting method using electric heater (heating wire) (The energy efficiency (COP) of the electric heater is less than 1, but the energy efficiency of the geothermal heat pump snow melting method is about 3-4). Level).

Third, much more complete snow melting than conventional electric heaters or geothermal water alone is possible. (The heat transfer contact area of the heat dissipation tube is wider, and the flow rate of the antifreeze flowing into the heat dissipation tube is controlled by the inverter pump and the three-way valve. System to control the speed and time of melting.

Fourth, the maintenance cost of manpower and equipment mobilization caused by spraying snow remover to solve freezing of road, outdoor parking lot, and sidewalk, and environmental pollution that snow pollutant penetrates road surface and pollutes land, It is possible to prevent the durability of the road due to corrosion and corrosion of the vehicle.

Fifth, it is possible to solve the problem of freezing of roads and outdoor parking lot and sidewalk caused by snow in winter, and to prevent overheating of outdoor parking lot, sidewalk and road in summer.

1 is a photograph and a block diagram showing a road surface freezing prevention facility according to the prior art.
2 is a block diagram of an intelligent snow melting system using a geothermal heat pump system according to the present invention.
3 is a cross-sectional view of a first heat dissipation tube of an intelligent snow melting system using a geothermal heat pump system according to the present invention.
4 is another cross-sectional view of a second heat dissipation tube of an intelligent snow melting system using a geothermal heat pump system according to the present invention.
FIG. 5 is a cross-sectional view illustrating a state of melting of a heat dissipation tube to which FIG. 4 is applied when a vehicle is driven.
FIG. 6 is a flowchart illustrating an example of an operation method in which an intelligent snow melting system using a geothermal heat pump system according to the present invention is linked with a weather forecast system of the Korea Meteorological Administration.
7 is a configuration diagram in which an anisotropic valve is installed at a connection portion between the second line and the third and fourth lines of FIG. 2.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intelligent snow melting system using a geothermal heat pump system and a method of operating the same, which is a road freezing prevention system that can prevent a safe driving of a vehicle and a pedestrian's sliding accident when snow falls on a road or freezes. .

2 is a configuration diagram of an intelligent snow melting system using a geothermal heat pump system according to the present invention, Figure 3 is a cross-sectional view of a first heat dissipation tube of an intelligent snow melting system using a geothermal heat pump system according to the present invention, Figure 4 Figure 2 is a cross-sectional view of a second heat dissipation tube of an intelligent snow melting system using a geothermal heat pump system according to the invention, Figure 5 is a cross-sectional view showing a melting state of the heat dissipation tube to which Figure 4 is applied when the vehicle is running, Figure 6 is A flow chart showing an example of an operation method in which an intelligent snow melting system using a geothermal heat pump is linked with a weather forecasting system of the Korea Meteorological Administration, and FIG. 7 is an anisotropic valve at a connection portion between a second line and a third and fourth line according to FIG. Is a configuration diagram installed.

2 to 6, a preferred embodiment of an intelligent snow melting system using a geothermal heat pump system according to the present invention will be described.

The intelligent snow melting system using the geothermal heat pump system according to the present invention is a geothermal heat pump having first and second heat exchangers (1a, 1b), compressor (1c), four-way valve (1d) and expansion valve (1e) (1), a ground heat exchanger (2) buried in the ground, a first line (3) connecting the ground heat exchanger (2) and the second heat exchanger (1b), and through which a heat transfer medium circulates; And an automatic control panel connecting the first heat exchanger 1a and the heat demand source 4 installed on the opposite side of the second heat exchanger, and controlling the second line 5 and the entire system in which the heat exchange medium is circulated. A geothermal heat pump system comprising: a plurality of three-way valves (10) or two-way valves (10 ') installed in the second line (5); Third and fourth lines 11 and 12 branched from the three-way valve; A first heat dissipation pipe 14 installed between the third line and the fourth line, one end of which is connected to the third line 11 and the other end of which is connected to the fourth line 12; It is configured to include, and also one end is connected to the third line and the fourth line (11, 12), respectively, the other end further comprises a second heat dissipation pipe (15) connected to the fifth line (16) .

Preferably, the third and fourth lines are provided with a flow control valve 13, the second line 5 is provided with an inverter pump 6, the first and second heat dissipation pipes (14, 15) ) Flows through the heat exchange medium (antifreeze).

FIG. 2 is a block diagram showing the direction of flow in relation to the overall heat transfer and circulation of the heat exchange medium (antifreeze) illustrating a specific method of applying a water to water geothermal heat pump to a snow melting system. . As shown in the drawing, in the geothermal heat pump system using geothermal heat, the geothermal heat pump 1 includes a first heat exchanger 1a, a second heat exchanger 1b, a compressor 1c, a four-way valve 1d, and an expansion valve. 1e and the components are connected to an internal pipe so that the refrigerant circulates. On the other hand, underground heat exchanger (2) is embedded in the ground, the heat transfer medium is circulated to the first line (3) connecting the underground heat exchanger (2) and the second heat exchanger (1b), wherein the heat transfer medium The heat absorbs the heat of the refrigerant circulating through the geothermal heat pump to radiate heat into the ground, or transfer the geothermal heat to the refrigerant.

In the heating operation, the refrigerant compressed by the compressor 1c passes through the four-way valve 1d, the first heat exchanger 1a, the expansion valve 1e, the second heat exchanger 1b, and the four-way valve 1d. (Shown by dashed arrows in the drawing), when the first heat exchanger 1a acts as a condenser and releases heat, the heat exchange medium (antifreeze) flowing to the second line 5 is discharged. 1 The heat absorber 1a absorbs heat and is transferred to a heat (heating) demand destination (building heating and cooling equipment, hot water supply equipment, etc.) in a high temperature state to perform heating and hot water supply. The second line 5 includes an inverter pump ( 6) is installed to control the flow rate required by the heat source. In addition, the third line 11 and the fourth line 12 are also provided with a flow control valve 13 for adjusting the flow rate to control the flow rate to the heat radiating pipes (14, 15), the amount of snow accumulated and freezing Accordingly, the flow rate of the high temperature heat medium flowing to the heat radiating tube is adjusted. The flow control valve 13 is installed at the outlet side and the inlet side of the third and fourth lines 11 and 12, respectively, to regulate the flow rate of the high temperature heat medium flowing in and out of the heat dissipation pipes 14 and 15. .

In summer, the cooling operation is mainly performed. In the cooling operation, the refrigerant circulates in the opposite direction to the refrigerant circulation during the heating operation (indicated by the solid arrow in the drawing). That is, the refrigerant compressed by the compressor 1c flows back into the compressor through the four-way valve 1d, the second heat exchanger 1b, the expansion valve 1e, the first heat exchanger 1a, and the four-way valve 1d. When the first heat exchanger 1a serves as an evaporator and absorbs heat, the heat exchange medium (antifreeze) flowing to the second line 5 is heated in the first heat exchanger 1a. Is taken away and delivered to the cooling demand destination in a cool and cold state to perform cooling. In the cooling operation as described above, the opening degree of the third line 10 of the three-way valve 10 of the second line 5 is opened to allow cold water of about 7 ° C. or less to flow to the heat radiating pipes 14 and 15. By preventing the overheating of parking lots, roads and sidewalks, the ambient temperature is reduced to improve the comfort of the parking lot users, protect the vehicle tires from heat, and increase the durability of the roads. Cooling loads on buildings can be reduced because the rooftop floor can be cooled by direct sunlight.

In the heating operation of the geothermal heat pump, the third line and the fourth line 11 branching the high temperature heat medium through the three-way valve 10 through the three-way valve 10 provided in the second line 5, respectively. , 12) to eliminate the freezing of the access road and general road of the outdoor parking lot or underground parking lot. In detail, a high temperature antifreeze (about 50 ° C. or more) flowing through the second line 5 flows into the fourth line 12 through the three-way valve 10, and the first heat radiation embedded in the outdoor parking lot, sidewalks, and the road surface is embedded. The frost is removed while passing through the pipe 14 and the second heat dissipation pipe 15, and the antifreeze that has been brought to a low temperature is introduced into the second line 5 through the third line 11, thereby removing the ground heat pump. The heat is obtained through the first heat exchanger 1a and flows again through the second line to the fourth line 12 to dissipate freezing through the first and second heat dissipating pipes, and then through the third line 11. By repeating the circulation flowing into the second line 5 and the first heat exchanger 1a, the snow of the outdoor parking lot, sidewalks, and the road surface is melted or ice is removed.

In order to melt the snow or to freeze as described above, a high temperature antifreeze must move to the first heat dissipation tube 14 and the second heat dissipation tube 15 through the fourth line 12. The fourth line 12 is completely wrapped with insulation to preserve the high temperature. The heat insulating material is preferably to use a material having excellent resistance to moisture. The high temperature antifreeze dissipating heat from the heat dissipation pipes 14 and 15 becomes a low temperature and flows into the second line 5 through the third line 11, and the third line 11 is also wrapped with a heat insulating material to prevent freezing. Do not allow the antifreeze temperature to drop any further. Wrapping the third line 11 with insulation prevents the antifreeze from freezing while flowing through the third line 11 and also enters the first heat exchanger 1a via the second line 5 to This is to improve the heat exchange efficiency during heat exchange with the refrigerant.

It is a heat dissipation tube that melts snow accumulated on the road surface or directly removes freezing, which is disposed between the third line 11 and the fourth line 12, and one end thereof is the third line 11. The other end is connected to the first heat dissipation pipe 14 connected to the fourth line 12, and one end is connected to the third line and the fourth line 11 and 12, and the other end is connected to the fifth line ( And a second heat dissipation tube 15 connected to 16).

The lower part of the said 1st heat radiating pipe 14 is provided with the heat-reflective plate 14b of the shape of "∨" along the longitudinal direction adjacent to the said 1st heat sink, and the lower part of the said heat reflecting plate 14b is a heat insulating material ( 14c) is further installed. In addition, the heat storage and heat transfer material 14a is filled in the first heat dissipation pipe 14.

Similarly to the first heat dissipation tube 14, a heat reflecting plate 15b having a “이” -shaped cross section along the longitudinal direction thereof is provided below the second heat dissipating tube 15 adjacent to the second heat dissipating plate. Insulation material 15c is further installed below the heat reflection plate 15b, and heat storage and heat transfer material 15a is filled in the second heat dissipation pipe 15. The top of the heat storage and heat transfer material 15a is finished with road finishes such as asphalt, concrete, sidewalk blocks, and the like. The first heat dissipation pipe 14 and the second heat dissipation pipe 15 are branched from the third and fourth lines 11 and 12 and are provided in plurality.

As described above, the reflection plate and the heat insulator are installed in the lower part of the heat dissipation tube, thereby preventing the energy (heat) of the high temperature antifreeze supplied from the geothermal heat pump from being absorbed in the ground. Heat dissipated from the heat pipe can be transferred to effectively warm the road surface.

In addition, drainage layers 14d and 15d such as sand or masato are installed around the side surfaces and lower portions of the heat insulators 14c and 15c, and the drainage layers 14d and 15d are formed of a large amount of water or rainwater generated after snow melting. By smoothing the drainage, it is possible to prevent damages to the heat reflecting plates 14b and 15b and the heat insulators 14c and 15c so that the heat radiation efficiency and the heat insulation efficiency are not reduced.

Especially in the case of melting a relatively large area such as an outdoor parking lot or sidewalk, as shown in Fig. 3, the first heat radiation pipe 14 is provided by installing a heat reflecting plate 14b and a heat insulator 14c having a "∨" shape in cross section. As the heat released rises upward and leftward to maximize the snow effect. In addition, in long roads such as underground parking lot access roads and general roads, as shown in FIGS. 4 and 5, it is preferable to install heat reflecting plates and heat insulating materials having a “∪” shape in cross section, which is emitted from the second heat dissipation pipe 15. The heat does not spread from side to side, so that it can be intensively melted in a certain area.

As shown in FIG. 5, the second heat dissipation tube 15 is spaced apart in two rows in accordance with the distance between the left and right wheels of the vehicle. By installing the second heat dissipation pipe 15 in accordance with the separation distance between the right wheels of the vehicle, the area in which the vehicle wheels touch is intensively melted, and thus, snow melting and freezing work efficiency can be improved. In addition, the second heat dissipation pipe 15, the heat reflecting plate 15b, and the heat insulator 15c are configured in the same trench 17, and a separate trench 17 is provided in the drainage layer 15d, and the second heat sink 15 is disposed in the trench. 2 Install the heat sink (15), heat reflector and heat insulator. In this case, the drainage layer around the trench 17 applies masato and sand, which are well drained of moisture and rainwater, and fills the Masato and sand in the remaining trench after the second heat pipe, the reflector and the heat insulator are installed, and the lower part of the trench and It is preferable to form a drain hole in the side surface, and the heat storage and heat transfer material 15a is filled in the upper portion of the trench 17.

2, the second heat dissipation tube 15 provided between the third line 11 and the fourth line 12 may be the second heat dissipation tube 15. The flow direction of the heat exchange medium flowing in the inside is changed. The heat exchange medium flowing through the second heat dissipation tube 5 is configured to alternately flow in a clockwise or counterclockwise direction, and flows into the second heat dissipation tube 15 through the fourth line 12 and passes through the third line 11. By installing a line such that the high-temperature antifreeze flowing through the zigzag inflow and outflow into the second heat dissipation tube, the snow and ice on the left and right sides of the road can be melted evenly in a straight form along the wheel of the vehicle. The second heat dissipation pipe 15 is branched from the third and fourth lines, and a plurality of second heat dissipation pipes 15 are installed. In detail, the second heat dissipation pipe 15 is configured such that one end thereof is connected to the third line and the fourth line 11 and 12, and the other end thereof is connected to the fifth line 16. Line 16, like the third and fourth lines 11 and 12, is completely wrapped with insulation to prevent the energy (heat) of the hot antifreeze from being consumed in the ground, because the fifth line 16 directly This is because the wheels of the vehicle do not reach, and it does not have much to do with melting snow or eliminating ice.

The inverter pump 6 installed in the second line 5 also controls the flow rate required by the heat demand destination 4, but can control the flow rate flowing to the fourth line 12 through the three-way valve 10. It is possible to control the speed of snow in the pipes (14, 15).

The parking lot, sidewalks and road surface are provided with one or more temperature sensors 18, 19 connected to the automatic control panel. The temperature sensors 18 and 19 detect the temperature rise of the parking lot, sidewalks and roads when a high temperature antifreeze flows through the heat radiating pipes 14 and 15 to reach a required temperature when the temperature is below a predetermined temperature. Increase the number of revolutions of the) to increase the flow rate of the high temperature antifreeze flowing into the heat sinks (14, 15), and reduce the number of revolutions of the inverter pump when the temperature of the parking lot, sidewalks and roads is too high To reduce the flow rate. The temperature sensors 18 and 19 and the inverter pump 6 are connected to an automatic control panel, and the rotation speed of the inverter pump 6 is controlled by the automatic control panel according to the temperature sensed by the temperature sensor.

As such, by controlling the rotation speed of the inverter pump by the automatic control panel, power consumption of the inverter pump can be reduced. In addition, when the load of the heat demand destination is small, in order to eliminate the freezing of roads, sidewalks and parking lots, the opening degree of the three-way valve 10 connected to the heat demand destination 4 side is small, instead of increasing the flow rate of the heat exchange medium, The opening degree of the three-way valve 10 connected to the four lines 12 is further opened to increase the flow rate to the heat pipes 14 and 5 embedded in the parking lot, the sidewalks, and the road. That is, if the opening degree of the three-way valve 10 is 5: 5, the flow rate flowing into the fourth line 12 is larger than the flow rate flowing into the heat demand destination 4 such as 4: 6 or 3: 7. Adjust. In addition, when snow melting and freezing are not necessary, the opening of the three-way valve 10 connected to the fourth line 12 is closed to introduce the heat exchange medium only to the heat demand destination 4. However, in this case, the flow rate of the heat exchange medium may be controlled by using an anisotropic valve instead of the three-way valve for controlling the flow rate for the same purpose. As shown in FIG. 7, instead of the three-way valve, an anisotropic valve 10 ′ is installed in the second line 5 and the third and fourth lines 11 and 12 to control the flow rate and flow direction of the heat exchange medium. By using the two-way valve in place of the three-way valve 10 'in the line, the number of valves takes twice.

The automatic control panel is connected to the temperature sensors 18 and 19, and further connected to the eye sensor 22, the outside air temperature sensor 21, and the humidity sensor 20, wherein the eye sensor 22 and the outside air. The temperature sensor 21 and the humidity sensor 20 are each installed outdoors, and the temperature sensors 18 and 19 are connected to the automatic control panel. The snow sensor 22 detects snowfall and receives a snowfall signal, while the outside temperature sensor 21 senses the temperature of the outside air, when the outside air temperature is less than or equal to the outside air freezing temperature, the humidity sensor 20 measures the humidity in the air. When the humidity detected in the air is less than or equal to the expected humidity of the snow, the temperature sensors (18, 19) detect the temperature of the parking lot, sidewalks and the road surface when the detected temperature of the road surface is less than or equal to the freezing temperature of the road surface Each of the measured values is transferred to the automatic control panel to operate the geothermal heat pump system such as the geothermal heat pump 1, the geothermal circulation pump, and the inverter pump 6. The operation of the geothermal heat pump system causes the snow melting system to operate. The automatic control panel analyzes each measured value measured by the sensor to determine whether two or three or more values satisfy the snow melting system operation condition, and when the snow melting system is operated, the geothermal heat pump system is operated. It also runs a connected snow melting system.

In addition, the snow melting system using the geothermal heat pump system automatically sends and receives weather forecast data in association with the weather forecast of the Korea Meteorological Administration, the snow melting using the geothermal heat pump system of the present invention before a certain time before the expected time to snow Running the system can more effectively prevent freezing of parking lots and roads. 6 shows an example of an operation method for starting and stopping the system according to the present invention with reference to the weather forecast of the Meteorological Agency on the basis of the time of snowing and the time of stopping.

6 is a flow chart showing an example of the operation method of the present invention, the operation method of the snow melting system using the geothermal heat pump system, the weather forecast data of the meteorological office receives the snowfall start time and snow stop time from the weather forecast data; Extracting; Determining whether the current time is an initial operation time obtained by subtracting a specific time from a snowfall start time; Operating the geothermal heat pump system when the current time reaches the initial operating time; Determining whether it is currently snowing after operating the geothermal heat pump system; Continuing to operate the geothermal heat pump system if it is determined that snow is present at the current time; Determining whether the actual snow has stopped when the current time reaches the snow stop time; Stopping the geothermal heat pump system if it is determined that snow has stopped at the current time; It works including.

In the above operation method, the time specified by subtracting a specific time from the predicted snowfall start time is defined as an initial operating time, assuming that the snowfall start time is 9 o'clock and the specific time is 30 minutes, The minus 8:30 is called the initial operating time. It is to operate the snow melting system using the geothermal heat pump system from 8:30, the initial operating time. That is, the system is operated from any time between 8:30 and 9 o'clock. The specific time is input to the automatic control panel and operated, and the specific time may be changed to 20 minutes or 10 minutes according to various conditions such as climatic conditions of the installation place. In addition, the geothermal heat pump system is automatically controlled according to a specific time and can be controlled manually if necessary.

The operating method of the present invention receives weather forecast data of the Meteorological Agency if the current time does not reach an initial operation time minus a specific time from snowfall start time, and extracts snowfall start time and snowfall stop time from the weather forecast data. And returning to the step of updating weather forecast data, and when it is determined that there is no current snow in the step of determining whether the current snow is present after operating the geothermal heat pump system, the operation of the geothermal heat pump system Stopping and returning to updating the weather forecast data.

In addition, if it is determined that the snow continues to fall at the stage of determining whether the actual snow has stopped when the current time reaches the snow stop time, the operation of the geothermal heat pump system continues and the determination of whether the actual snow has stopped again. It includes; returning to the step.

The above description is only illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: geothermal heat pump 1a: first heat exchanger
1b: second heat exchanger 1c: compressor
1d: Four-way valve 1e: Expansion valve
2: underground heat exchanger
3: first line 4: heat demand source
5: 2nd line 6: inverter pump
10: Three way valve 10 ': Two way valve
11: Third line
12: 4th line 13: flow control valve
14: 1st heat dissipation tube 15: 2nd heat dissipation tube
14a, 15a: heat storage and heat transfer material
14b, 15b: Heat reflector 14c, 15c: Insulation material
14d, 15d: drainage layer
16: Line 5 17: Trench
18, 19: temperature sensor 20: humidity sensor
21: outside temperature sensor 22: eye detection sensor

Claims (16)

In the snow melting system using a geothermal heat pump system,
A ground heat pump including first and second heat exchangers, a compressor, a four-way valve, and an expansion valve, an underground heat exchanger buried in the ground, and a ground heat exchanger and a second heat exchanger, and a heat transfer medium circulates therein; Geothermal heat comprising a first line, a first heat exchanger installed on the opposite side of the second heat exchanger and a heat demand destination, and a second line through which the heat exchange medium circulates and an automatic control panel for controlling the entire system. In a pump system,
Three-way valve or two-way valve installed in the second line;
Third and fourth lines branching from the three-way valve;
A first heat dissipation tube disposed between the third line and the fourth line, one end of which is connected to a third line and the other end of which is connected to the fourth line;
Intelligent snow melting system using a geothermal heat pump system, characterized in that comprising a.
The method of claim 1,
One end is connected to the third line and the fourth line, respectively, the other end is an intelligent snow melting system using a geothermal heat pump system, characterized in that it further comprises a second heat pipe connected to the fifth line.
The method of claim 1,
Intelligent snow melting system using a geothermal heat pump system, characterized in that the flow rate control valve is installed in the third and fourth lines.
The method of claim 1,
An inverter pump is installed in the second line, and an intelligent snow melting system using a geothermal heat pump system, characterized in that a heat exchange medium (antifreeze) flows in the first and second heat pipes.
The method of claim 2,
The first heat dissipation pipe and the second heat dissipation pipe are embedded in an outdoor parking lot, sidewalks and road surfaces, and intelligent snow melting using a geothermal heat pump system, characterized in that a temperature sensor connected to an automatic control panel is installed in the parking lot, sidewalks and a road surface. system.
6. The method of claim 5,
The automatic control panel is an intelligent snow melting system using a geothermal heat pump system, characterized in that further connected to the eye sensor, humidity sensor and outside temperature sensor.
In the snow melting system using a geothermal heat pump system,
A ground heat pump including first and second heat exchangers, a compressor, a four-way valve, and an expansion valve, an underground heat exchanger buried in the ground, and a ground heat exchanger and a second heat exchanger, and a heat transfer medium circulates therein; Geothermal heat comprising a first line, a first heat exchanger installed on the opposite side of the second heat exchanger and a heat demand destination, and a second line through which the heat exchange medium circulates and an automatic control panel for controlling the entire system. In a pump system,
In the lower portion of the first heat dissipation tube provided between the third line and the fourth line connected to the geothermal heat pump, a heat reflector having a “∨” shape in cross section along the longitudinal direction is provided adjacent to the first heat dissipation plate. Insulation material is further installed under the heat reflector plate, the first snow heat pipe is intelligent snow melting system using a heat storage and heat transfer material is characterized in that the heat transfer material is filled.
In the snow melting system using a geothermal heat pump system,
A ground heat pump including first and second heat exchangers, a compressor, a four-way valve, and an expansion valve, an underground heat exchanger buried in the ground, and a ground heat exchanger and a second heat exchanger, and a heat transfer medium circulates therein; Geothermal heat comprising a first line, a first heat exchanger installed on the opposite side of the second heat exchanger and a heat demand destination, and a second line through which the heat exchange medium circulates and an automatic control panel for controlling the entire system. In a pump system,
In the lower portion of the second heat dissipation tube provided between the third line and the fourth line connected to the geothermal heat pump, a heat reflector having a "∪" shape in cross section is installed adjacent to the second heat dissipation plate along the longitudinal direction thereof. And an insulating material is further installed below the heat reflector, and the heat storage and heat transfer material is filled in the second heat pipe.
The method according to claim 7 or 8,
Intelligent snow melting system using a geothermal heat pump system, characterized in that the drainage layer is installed around the side and bottom of the insulation.
The method of claim 8,
The second heat dissipation pipe is an intelligent snow melting system using a geothermal heat pump system, characterized in that spaced two rows-installed in accordance with the distance between the left and right wheels of the vehicle.
The method of claim 8,
The second heat dissipation pipe disposed between the third line and the fourth line is a snow melting system using a geothermal heat pump system, characterized in that the flow direction of the heat exchange medium flowing in the second heat dissipation pipe is changed.
The method of claim 8,
Intelligent snow melting system using a geothermal heat pump system, characterized in that the second heat pipe, the heat reflector and the heat insulating material are configured in the same trench.
In a method of operating a snow melting system using a geothermal heat pump system,
Receiving weather forecast data of the Korea Meteorological Agency and extracting snowfall start time and snowfall stop time from the weather forecast data;
Determining whether the current time is an initial operation time obtained by subtracting a specific time from a snowfall start time;
Operating a geothermal heat pump system when the current time has reached the initial operating time;
Determining whether it is currently snowing after operating the geothermal heat pump system;
Continuing to operate the geothermal heat pump system if it is determined that snow is present at the current time;
Determining whether the actual snow has stopped when the current time reaches the snow stop time;
Stopping the geothermal heat pump system if it is determined that snow has stopped at the current time;
Method of operation of intelligent snow melting system using a geothermal heat pump system comprising a.
The method of claim 13,
If the current time does not reach the initial operation time after subtracting a specific time from the start time of snowfall, the weather forecast data of the meteorological office is received, and the process returns to the step of extracting the start time of snowfall and the stop time of snowfall from the weather forecast data, and the weather forecast data. Operation method of an intelligent snow melting system using a geothermal heat pump system, characterized in that it further comprises the step of updating.
The method of claim 14,
If it is determined that there is no snow currently in the step of determining whether there is currently snow after operating the geothermal heat pump system, the operation of the geothermal heat pump system is returned to the step of updating the weather forecast data Operation method of intelligent snow melting system using geothermal heat pump system.
16. The method of claim 15,
If it is determined that the snow is still falling in the step of determining whether the actual snow has stopped when the current time reaches the snow stop time, the step of continuing to operate the geothermal heat pump system and determining whether the actual snow again Returning to; operating method of intelligent snow melting system using a geothermal heat pump system comprising a.

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