JPS62237249A - Method of thawing snow utilizing terrestrial heat - Google Patents

Abstract

PURPOSE:To provide a method of thawing snow utilizing terrestrial heat, by winding a spiral circulation pipe around a well cylinder, by burying the cylinder with the pipe under the ground, by arranging the water-forwarding part of a circulation pipe on the spot where an object to be thawed is, and by circulating water through the circulation pipe by providing a circulation pump in the pipe. CONSTITUTION:A circulation pipe 5 is buried under the ground together with a well cylinder 2. The spiral part of a circulation pipe 5 is wound around the well cylinder 2 nearly to the lowest end of it. One end of a circulation pipe 5 is connected to the outlet side of a staggering water-forwarding passage which is arranged and assembled in the roof 6 of a building 'A' as an object. The other end of a circulation pipe 5 is connected to the inlet side of a water-forwarding passage 7 via a circulation pump 8. When the snow covering the roof 6 of a building 'A' is to be thawed, a work is started by turning the circulation pump 8 ON. A fluid in the circulation pipe 5, of which heat is exchanged with the heat of the earth, is circulated. it is transmitted to the water-forwarding passage 7 arranged in the roof 6, and again is led to the spiral part of a circulation pipe 5. The snow covering the roof on the water passage 7 is thawed by the circulation fluid, of which heat is exchanged with terrestrial heat, and which is circulated through the water-forwarding passage 7.

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention provides a method of burying a circulation pipe for underground heat utilization together with a well pipe when excavating a well for the purpose of utilizing underground water. This invention relates to a snow melting method that uses underground heat to melt snow that has accumulated on a water supply route of an object by exchanging heat with underground heat.

[Conventional technology]

Generally, in snowy areas, the snow that accumulates on target objects such as roofs, roads, and traffic areas is removed using heaters installed in those areas.
Alternatively, snow was melted by sprinkling or non-sprinkling hot water from boilers or underground water.

[Problem that the invention seeks to solve]

However, there is a problem in that installing a heater requires a huge amount of money and is expensive.

Next, when hot water from a boiler is used, hot water cannot be obtained unless the boiler is operated, so this is not necessarily an economical means of melting snow. Furthermore, when groundwater is used to melt snow, there are problems in that it is limited to areas where groundwater can be taken in, and there are also concerns about water level drop and ground subsidence.

Furthermore, the above-mentioned conventional technology has the problem that even if it is expensive to install, it is only used as a means of melting snow during the winter season, except for the use of groundwater.

This invention solves the above-mentioned problems, uses underground heat in non-JSU areas, has low running costs (and is economical), and even if a problem occurs with the snow melting method using groundwater, it is possible to switch to underground heat. This provides a snow melting method that utilizes underground heat.

[Failure to solve the problem]

This invention, as a means to solve the above problems,
It was configured as follows.

That is, a circular circulation pump is fitted and buried around a well pipe to be buried in a well hole to be drilled, and the water supply channel of this circulation pipe is arranged at the desired snow melting position of the object. In addition, the present invention provides a snow melting method using underground heat, which is characterized by circulating fluid within the circulation pipe via a circulation pump.

[Effect]

Since this invention is configured as described above, it has the following effects.

The circulation pipe is fitted over and buried together with the well pipe when drilling a well for the purpose of utilizing groundwater, and there is no need to perform separate burying work. The above makes it possible to use groundwater and underground heat in combination or alternately.

On the other hand, the fluid in the circulation pipe exchanges heat with the underground heat and maintains a temperature approximately equal to that of the underground heat. By circulating this fluid with the circulation pump, the water is delivered to the desired snow melting position of the object. Melting snow on the road.

[Example J An embodiment of the present invention will be described based on the drawings.

The drawing is an explanatory diagram of an embodiment in which the object is the roof of a building. Generally, in well drilling construction, the focus is moved up and down toward the aquifer, and the well hole 1 is excavated to the planned depth (30 m to 200 m), and the mud inside the well hole 1 is pumped out to form the well pipe, which becomes the casing. 2 into well hole 1. The gap between the well pipe 2 and the well hole 1 is filled with gravel, and the well pipe 2 is buried. Thereafter, the pumping pipe 4 with the submersible pump 3 fixed to its tip is lowered and immersed below the surface of the groundwater.

The valve is opened as described above, and the groundwater taken through pump 1' and 4 is supplied to target objects such as roofs, roads, parking lots, etc. for snow melting with or without watering (not shown). are doing.

According to the present invention, the circulation pipe 5 is buried underground together with the well pipe 2 during the well drilling work described above. The circulation pipe 5 is made of pressure-resistant polychloride resin, and a spiral portion is fitted around the well pipe 2 and positioned approximately at the bottom. Therefore, the circulation pipe 5 can be fitted onto the well pipe 2 on the ground in advance and then lowered together with the well pipe 2 into the well hole 1 and filled with gravel and buried, or the well pipe 2 can be lowered into the well hole 1. After that, the circulation pipe 5 is sequentially lowered while being fitted onto the outside and buried.

One end of the circulation pipe 5 is connected to the outlet side of a water supply channel 7, which is a meandering water pipe installed in the roof 6 of the building A, which is the target object. The other end of the i lff1 vibe 5 is connected to the inlet side of the water supply channel 7 with a circulation pump 8 interposed therebetween. In this circulation pipe 5, tap water is circulated in the case of a sprinkler type, and a fluid such as antifreeze or air is circulated in a non-sprinkle type. This fluid varies depending on the depth at which the circulation pipe 5 is buried, but the deeper it is, the more
High underground heat is obtained and the heat exchange rate is improved. Above water supply channel 7
The installation location is not limited to the roof, but if the desired snow melting location is a road or parking lot, the above-mentioned water supply channel 7 can be installed as a block with meandering water pipes installed in special asphalt. It may also be arranged.

Since the embodiment of the present invention is configured as described above, it has the following effects. When snow on the roof 6 of the building A is to be melted, the circulation pump 8 is first started. As a result of the above operation, the fluid in the circulation pipe 5 that is exchanging heat with underground heat is circulated, flows through the water supply channel 7 piped to the roof 6, passes through this water supply channel 7, and returns to the spiral circulation pipe 15. circulate within. The fluid that has exchanged heat with the underground heat as described above is circulated through the water supply channel 7 and begins to melt the snow on the water supply channel 7.

This invention can be used separately and in combination with a snow melting method that uses groundwater by opening a valve, and even if groundwater is not used due to problems such as ground subsidence, the snow melting method uses underground heat. It is of course possible to use only

In this embodiment, only the snow melting method was explained, but a fluid obtained by exchanging underground heat may be used for cooling purposes not only in winter but also in summer.

〔Effect of the invention〕

Since this invention is configured as described above, it has the following effects. Since the snow is melted using inexhaustible underground heat, running costs are low (not only is it economical, but ground water is not used, so there is no ground subsidence or water level drop. Since it is possible to construct and bury the circulation vibrator together with the lowering of the well vibrator, there is no need for special construction of a reservoir for underground heat utilization.

Furthermore, the fluid that has exchanged heat with underground heat can also be used for cooling in the summer, so it can be used throughout the year without wasting it.

[Brief explanation of drawings]

The drawing is an explanatory diagram showing an embodiment of the present invention, which uses the roof of a building as an object.

Claims (1)

[Claims] A spiral circulation pipe is fitted and buried around the well pipe to be buried in the well hole to be drilled, and the water supply channel of the circulation pipe is arranged at the desired snow melting position of the object, and a circulation pump is installed. A snow melting method using underground heat, characterized in that a fluid is circulated in the circulation pipe through interposition.