JP2003328309A - Snow melting apparatus for power plant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow melting apparatus for a power plant using warm drain of the power plant effectively for snow melting in the power plant. <P>SOLUTION: The heated effluent 1 is taken from a circulating water outlet 2 in a thermal nuclear power plant or the like and force-fed by a sea water pump 3. The heated effluent 1 force-fed by the sea water pump 3 flows through snow melting piping (water conveying main piping 5, 6 and a snow-melting piping unit 7) laid in a power plant site, to melt snow. Driving power for the pump 3 for taking the warm drain 1 is supplied by a small hydraulic turbine generator 4 installed in the circulating water outlet 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting device for a power plant, which utilizes the warm waste water discharged from the power plant to melt the snow in the power plant.

[0002]

2. Description of the Related Art Thermal power plants, nuclear power plants, and the like discharge hot waste water used as cooling water from a circulating water outlet. Conventionally, there is a case where the warm wastewater discharged from power plants such as thermal power plants and nuclear power plants is used to cultivate seafood.
Other than these, the actual situation is that these hot wastewater heats have not been effectively used.

[0003]

Conventionally, there is a problem in that the hot wastewater discharged from the power plant is only used for aquaculture of seafood, but the hot wastewater heat is not effectively utilized. An object of the present invention is to provide a snow melting device for a power plant, which can effectively utilize hot waste water from the power plant for snow melting in the power plant.

[0004]

[Means for Solving the Problems] The feature of the present invention is to perform snow melting by collecting hot waste water from a circulating water outlet of a thermal power plant and circulating a snow melting pipe laid on the premises of the power plant. I have done so. Another feature of the present invention is that, from the viewpoint of energy saving, the driving power for the pump that takes in the hot waste water is supplied by the small turbine generator installed at the circulating water outlet. Since the present invention uses the warm waste water discharged from the power plant to melt the snow in the power plant site, the warm waste water of the power plant can be effectively used.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The power station circulating water utilizing snow melting equipment of the present invention focuses on the fact that the drainage water is warm even in the winter, and circulates this warm drainage water in the snow melting pipe laid inside the facility,
It melts snow on roads and plazas. These warm wastewater is pumped up by a seawater pump installed at the outlet of the circulation channel, circulated in the snow melting pipe, and then returned to the outlet of the circulation channel. The power source of these seawater pumps is supplied by a small-scale hydroelectric power generator installed at the outlet of the same circulating water channel.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, warm wastewater 1 is discharged from a discharge port 2 of a circulating water channel. The warm wastewater 1 flowing through the discharge port 2 is pumped up by the seawater pump 3 and sent under pressure to the two main water pipes (snow melting pipes) 5, 6.

One end of each of the plurality of snow melting pipe units 7 is connected to one water main pipe 5 via a branch valve 8a, and the other end is connected to the other water main pipe 6 via a branch valve 8b. The main water pipes 5 and 6 and the snow melting pipe unit 7 are buried in the site of the power plant. Since the circulating water that flows through the main water pipes 5 and 6 and the snow melting pipe unit 7 is seawater, a corrosion resistant material such as special stainless steel is selected and buried at a predetermined depth from the ground surface.

A small-scale small hydroelectric generator 4 for generating electricity by the water flow of the warm wastewater 1 is installed at the water discharge port 2. Electric power generated by the small hydroelectric generator 4 is supplied as power for the seawater pump 3.

In this structure, the warm drainage 1 pumped up by the seawater pump 3 is returned to the discharge port 2 through the main water-conducting pipes 5 and 6 and the snow-melting pipe unit 7 laid inside the plant. As a result, snow is melted in the power plant by radiating heat from the main water pipes 5 and 6 and the snow melting pipe unit 7.

Further, the power of the seawater pump 3 is supplied by a small-scale small hydroelectric generator 4 installed at the water discharge port 2.

Although the snow melting at the power station is performed in this manner, the warm waste water discharged from the power station is used to melt the snow at the site of the power station. can do.

[0012] Further, since it is a snow melting facility that uses hot waste water heat and circulating water flow velocity in the plant, it can be operated without running costs. Furthermore, this facility can significantly improve the winter living environment during power generation in snowy countries.

[0013]

According to the present invention, the warm waste water discharged from the power plant is used to melt the snow on the premises of the power plant.
The hot waste water from the power plant can be effectively used.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Circulating water (warm drainage), 2 ... Circulation channel discharge port, 3 ... Seawater pump, 4 ... Small hydroelectric power generation device, 5, 6 ... Main water piping, 7 ... Snow melting piping unit, 8 ... Branch valve.

Claims (2)

[Claims] 1. A pump for pumping hot wastewater discharged from a circulating water discharge outlet of a power plant, two main water conduits for transporting the hot wastewater pumped by the pump, and one end of the main water master A snow melting pipe unit connected to the pipe and having the other end connected to the other main water conveying pipe, wherein the two water conveying main pipes and the snow melting pipe unit are buried in the power station site A snow melting device for a power plant, which is characterized by performing snow melting. 2. The small water turbine power generator according to claim 1, wherein the circulating water discharge outlet is provided with a small water turbine power generator that generates electricity by the water flow of the warm waste water, and the output power of the small water turbine power generator is used as drive power for the pump. A snow melting device for a power plant.