KR20040060464A - Snow clearing and ice clearing system of bridge using terrestrial heat - Google Patents

Abstract

PURPOSE: A snow-removing and deicing system for a bridge using underground heat is provided to prevent the accident on a bridge in winter by removing snow and ice on a bridge completely and to minimize the maintenance expenses by removing snow and ice using underground heat. CONSTITUTION: The snow-removing and deicing system using underground heat contains an underground heat collector(10) collecting underground heat with heat transfer fluid absorbing geotherm, a heat pump(20) producing hot water by exchanging with a heat transfer fluid which is accumulated from the underground heat collector(10) and supplied by a pump(P1), a heat transfer device(30) removing snow or ice on the surface of a bridge by supplying the hot water from the heat pump(20) to the surface of a bridge using a pump(P2), and a controller(40) controlling the heat pump(20) and the heat transfer device(30) according to the temperature and weather around a bridge to remove snow and ice effectively.

Description

SNOW CLEARING AND ICE CLEARING SYSTEM OF BRIDGE USING TERRESTRIAL HEAT}

The present invention relates to a snow removal and ice making system of bridges using ground heat, and more particularly, to a snow removal and ice making system of bridges using ground heat that can remove snow and ice of bridges. .

In general, due to the mountainous land-based environment, the proportion of tunnels and bridges in the construction of various roads is greatly increased. Among them, the bridge is more affected by the wind than the general road, so it is very likely that snow will accumulate or freeze, especially in winter, and thus many problems are raised for vehicle safety and traffic communication.

To solve this problem, various snow removal and ice making systems have been developed. Representative snow removal and ice making methods are used to install the heating wire on the road surface, the heating pipe installation method, the planar heating element installation method, the snow removal and the method of spraying the ice making material.

However, in such a conventional snowmaking and ice making system, a heating wire or a planar heating element uses an electric energy and thus requires excessive maintenance costs, and a heating pipe installation method requires a large initial installation cost and snow removal. And since the method of spraying the ice-making material is dependent on the manpower so that not only snow removal and ice making is not made in time, there is a problem that timely treatment is difficult.

The present invention has been made to solve the conventional problems as described above, it is an object of the present invention to completely remove the snow and ice of the bridge by using the geothermal heat present in the ground where the lower foundation of the bridge is installed It is to provide snow removing and ice making system of bridge using underground heat.

1 is an overall configuration of the snow removal and ice making system of the bridge using the ground heat according to the present invention.

2 is a view showing the installation state of the underground heat collecting unit provided to the snow removal and ice making system of the bridge using the ground heat according to the present invention.

Figure 3 is a plan view showing a heat generating pipe of the heat transfer means provided in the snow removal and ice making system of the bridge using the ground heat according to the present invention.

Figure 4 is an operating state of the snow removal and ice making system of the bridge using the ground heat according to the present invention.

The snow removal and ice making system of the bridge using the ground heat proposed by the present invention, the underground heat dissipation unit having a heat transfer fluid installed in the ground to absorb the ground heat;

A heat pump for storing heat transfer fluid regenerated from the underground heat collector and receiving a heat transfer fluid during a pump operation to exchange heat with the heat transfer fluid to produce hot water;

Heat transfer means for supplying hot water produced by the heat pump to a pipe disposed on the upper plate of the bridge to melt snow or ice on the bridge road surface;

Provides a snow removal and ice making system of the bridge using the ground heat including a control means for controlling the heat pump and heat transfer means to perform the snow and ice making according to the temperature and climatic conditions around the bridge.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

1 is an overall configuration diagram of a snow removal and ice making system of the bridge using the ground heat according to the present invention, Figure 2 is an installation state diagram of the geothermal heat collector provided in the snow removal and ice making system of the bridge using the ground heat according to the present invention. 3 is a plan view showing the piping of the heat transfer means provided in the snow removal and ice making system of the bridge using the ground heat according to the present invention.

In the snow removal and ice making system of the bridge using the ground heat according to the present invention, the underground heat collector 10 for heat-exchanging the ground heat by heat exchange with the ground heat is installed in the underground passage through which the heat transfer fluid flows; Heat pump 20 receives heat-generated heat transfer fluid from the ground heat collecting unit 10 by the operation of the pump P1 and heat-exchanges with the heat transfer fluid to produce hot water, and is produced by the heat pump 20 on the road surface of a bridge. Heat transfer means 30 for melting and removing snow or ice on the bridge surface by supplying the supplied hot water to the pump P2, and the heat pump 20 and the heat transfer means 30 according to temperature and climatic conditions around the bridge. And control means 40 for controlling snow removal and ice making efficiently.

The geothermal heat section 10 may be a geothermal heat exchanger of a well-known structure, which is a technology that recovers the heat of the ground at the annual temperature of 10 ~ 20 ℃ used as a heat source of the heat pump (20).

The geothermal heat collector 10 may be installed by embedding a polyethylene pipe or a heat exchange pipe 12 of a material having high thermal conductivity in the ground, and a heat transfer fluid is filled in the heat exchange pipe 12 to recover the geothermal heat. Consists of a structure.

Substantially, the installation of the underground heat collecting unit 10, when manufacturing the pier foundation 100, as shown in Figure 2a, the heat exchange pipe 12 is embedded therein or installed inside the pier foundation 100, Alternatively, as shown in FIG. 2B, a borehole 102 may be drilled in the ground under the pier foundation 100 and a heat exchange pipe 12 may be installed therein.

The heat exchange pipe 12 may connect a plurality of pipes having a “U” shape in series as in FIG. 2A, or may be connected in parallel as in FIG. 2B, and these heat exchange pipes 12 may have ends or pipes. In the middle part, the inlet side pipe line L1 and the outlet side pipe line L2 are installed in such a way as to connect with the heat pump 20.

The inlet side pipe line (L1) and the outlet side pipe line (L2) may be installed to be disposed therein, when manufacturing the pier 200 located on the upper portion of the pier foundation 100.

And the pump (P1) is a member which is installed for the smooth flow of the heat transfer fluid flowing through the inlet side and the outlet side conduit (L1) (L2) of the underground heat collector 10, the heat transfer fluid is the heat pump 20 After the heat exchange is performed in the ground heat return unit 10 to return through the pipeline (L1) (L2) to form a system that the heat transfer fluid can circulate.

The heat pump 20 receives the heat transfer fluid heated at a predetermined temperature from the underground heat collector 10, produces hot water by heat exchange, and circulates the hot water to the heat transfer means 30 by the operation of the pump P2. As such, the heat pump 20 may be provided that is commonly used in the geothermal heat exchanger, so a detailed description thereof will be omitted.

The heat transfer means 30 is connected to the heat pump 20, as shown in Figure 1 and 3, the main pipe (L3) consisting of a pipe so that the hot water produced in the heat pump 20 is circulated therein (L4) and the main pipe (L3) (L4) and a predetermined interval is connected to maintain a predetermined interval of the hot water circulating along the main pipe (L3) (L4) to the road surface of the bridge top plate 300, the constant of the bridge by heat exchange It includes a plurality of branch pipe (L5) to remove the snow or ice of the section.

The pump (P2) is installed in any one of the main pipe (L3) (L4) so that the circulation of hot water is made smoothly, and each branch pipe (L5) connected to the main pipe (L3) (L4) hot water is After circulating and performing heat exchange, the hot water is circulated by returning to the heat pump 20.

Substantially the main pipe (L3) (L4) is installed in the longitudinal direction of the road surface of the bridge top plate 300, the branch pipe (L5) both ends are connected to the main pipe (L3) (L4), respectively, bridge top plate 300 It is installed in the width direction of the road surface.

The control means 40 includes sensors (not shown) for measuring climatic conditions such as air temperature, humidity, road surface temperature, and snowfall around the bridge, and an inlet and an outlet pipe line flowing into the heat pump 20 ( Sensor (not shown) for determining the heat exchange capability by detecting the temperature difference of the heat transfer fluid of L1) (L2), and controls the driving of the heat pump 20 and the heat transfer means 30 by receiving the signals transmitted from the sensors. It may be made of a control unit (not shown).

The snow removal and ice making system as described above may be installed at one or a predetermined interval depending on the length or width of the bridge.

The operation of the snow removal and ice making system of the bridge using the geothermal heat of the present invention, if the climatic conditions around the bridge is measured and input to the control means 40, whether the system is driven by the control of the control means 40 Decide

At this time, when the control means 40 determines snow removal and ice making, the heat transfer fluid absorbing the geothermal heat from the underground heat collector 10 is stored in the heat storage pipe 12 in a heat storage state, and the pump P1 starts driving. As illustrated in FIG. 4, the underground heat dissipation unit 10 and the heat pump 20 are circulated through the inlet pipe line L1 and the outlet pipe line L2.

When the heat transfer fluid having geothermal energy circulates as described above, hot water is produced by heat exchange with the heat transfer fluid in the heat pump 20.

Thus produced hot water circulates through the main pipe (L3) (L4) and the plurality of branch pipes (L5) of the heat transfer means 30 installed in the bridge upper plate portion 300 by the operation of the pump P2 bridge top plate portion 300 Transfer to the road surface to remove the snow or ice of the bridge by heat exchange.

And the hot water deprived of heat energy is introduced into the heat pump 20 through the main pipe (L4) to repeat the above action, by this action hot water having a predetermined temperature is circulated to the bridge top plate 300 to heat energy on the road surface It delivers and performs snow removal and ice-making.

This action is completed until the snow and ice making is completely completed by the control of the control means 40 and ends.

In the present embodiment, hot water is produced by heat exchange in the heat pump 2 using the heat energy of the heat transfer fluid collected in the underground heat collector 10, and the hot water is circulated to the heat transfer means 30 to perform snow removal and ice making. Although not limited thereto, it may be configured to directly circulate the heat transfer fluid sintered in the underground heat dissipation unit 10 to the heat transfer means 30.

This prevents heat loss generated when the heat transfer fluid heat-exchanged with geothermal heat exchanges with the hot water in the heat pump, thereby improving the efficiency of heating and cooling.

As described above, the snow removal and ice making system of the bridge using the ground heat of the present invention can completely remove snow and ice of the bridge by using the ground heat existing in the ground, so that traffic accidents that may occur in the bridge in winter and Safety accidents can be prevented. In addition, since snow and ice are made using underground heat, the maintenance and operation costs of the system can be minimized.

Claims (5)

A geothermal heat dissipation unit installed in the ground and having a heat transfer fluid absorbing geothermal heat; A heat pump for storing heat transfer fluid regenerated from the underground heat collector and receiving a heat transfer fluid during a pump operation to exchange heat with the heat transfer fluid to produce hot water; Heat transfer means for supplying hot water produced by the heat pump to a pipe disposed on the upper plate of the bridge to melt snow or ice on the bridge road surface; 10. A snow removal and ice making system for a bridge using underground heat, comprising: control means for controlling heat pumps and heat transfer means to perform snow removal and ice making according to temperature and climatic conditions around the bridge. The method of claim 1, wherein the underground heat collecting unit is installed in a manner of embedding the heat exchange pipe inside the bridge foundation portion, or the snow removal and ice making system of the bridge using the ground heat, characterized in that installed in the ground. The underground heat exchange pipe of claim 2, wherein the heat exchange pipe is installed by connecting a plurality of pipes in series or in parallel, and the inlet pipe and the outlet pipe are connected to the heat pump at the end of the heat exchange pipe or in the middle of the pipe. Snow snow removal and ice making system using heat. The method of claim 1, wherein the piping is a snow removal and ice making system of the bridge using the geothermal heat, characterized in that consisting of the main pipe which is disposed in the longitudinal direction along the top plate of the bridge and the branch pipe extending laterally from the main pipe. A geothermal heat dissipation unit installed in the ground and having a heat transfer fluid absorbing geothermal heat; Heat transfer means for supplying heat transfer fluid regenerated from the underground heat collector to a road surface of a bridge to melt and remove snow or ice on the road surface; 10. A snow removal and ice making system for a bridge using underground heat, comprising: control means for controlling heat pumps and heat transfer means to perform snow removal and ice making according to temperature and climatic conditions around the bridge.