JPS61243256A - Method and device for utilizing geothermal energy - Google Patents

Abstract

PURPOSE:To permit to utilize air, whose heat is exchanged with the heat of groundwater, for snow melting and room heating in winter and room cooling or the like in the summer by a method wherein the air is sent into a well pipe, buried deep into ground, and the heat thereof is exchanged at the deep position of the well pipe, then, the air is taken out above the ground. CONSTITUTION:The well pipe 1 is buried deep into ground, an air sending pipe 2, sending air above the ground, is laid in the well pipe, the end of the air sending pipe 2 is connected to a forced air sending device 3, provided above the ground, the upper opening of the well pipe 1 is closed by a lid 4 and a delivery pipe 5, sending air which has already finished heat exchange into a desired place, is connected to the lid 4. When the air above the ground is sent to the deep part of the well pipe 1 by the forced air sending device 3 through the air sending pipe 2 and is discharged, the heat of the discharged air is exchanged with the heat of ground water in the well pipe 1 or the vein of water, then the air whose heat is exchanged already, is taken out above the ground and is utilized for the source of room cooling or heating, therefore, subsidence of ground as well as the pollution of groundwater may be prevented surely.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a geothermal utilization method and device that utilizes geothermal heat deep underground, sends air source air above the ground, exchanges heat, and uses it for air conditioning 1. It is.

[Conventional technology]

Groundwater is used almost entirely to melt snow on roads.

For this reason, it may cause ground subsidence and groundwater
There are concerns that the original method may cause underground contamination, and some are starting to say that underground resources are being used.

[Problem that the invention seeks to solve]

The present invention solves these drawbacks by using groundwater to exchange heat with the air above the ground without pumping up groundwater.
It is technologically important to provide geothermal utilization methods and equipment for using this heat exchange air for lightning suppression, heating during the winter, cooling during the summer, etc.

[Means for resolving gaps]

A well pipe (1) is buried deep underground, a blow pipe (2) that sends air from above the ground into the IJ is installed facing deep, and a well pipe (2) is installed above ground at the end of the well pipe (2). A delivery pipe (5) which is connected to an air pressure feeding device (3), closes the ceiling opening of the well pipe (1) with a blocking lid (4), and sends heat exchange air to the desired location through the blocking lid (4). are installed in succession.

〔Example〕

If a compressor is used, the air pressure feeding device (3) should be of the same size, and this baffle plate (6) should have many air ventilation holes (
7) is perforated.

Instead of the baffle plate (6), a strip plate may be wound spirally to suppress the rising speed.

In the figure (8) is the suction hole of the well pipe (1).

〔Effect of the invention〕

Since the present invention is configured as described above, when the air on the ground is sent through the blow pipe (2) to the deep part of the well pipe (1) by the air pressure sending device (3) and released, this discharged air is transferred to the well pipe (1).
1) Heat is exchanged by underground water, i.e., water veins, and this heat-exchanged heat exchange air is taken out above the ground (2) and used as a source of air conditioning.This is the conventional method of directly pumping groundwater and using it for air conditioning. Compared to conventional methods, ground subsidence and groundwater contamination can be prevented more reliably.

In addition, heat exchange air with a temperature close to the blast tube vein temperature can be obtained from this air by the air pressure feeding device (3).Furthermore, in order to expect even higher heat exchange, the present invention uses the blast tube (
2) Multi-stage baffle plates (6) are provided on the outer periphery to prevent the heat exchange air from rising straight inside the well tube (1), i.e. to suppress the rising speed. )
As the air slowly rises while colliding with the water vein, heat exchange takes place in the water vein, ensuring that heat exchange air close to the water vein temperature is continuously obtained.

This heat exchange air is taken out from the delivery pipe (5),
It becomes an economical lightning-extinguishing roof device when used for lightning-extinguishing roofs (double-structured roofs that force-pump hot air) in the winter, and can also be used as an auxiliary heat source for hot-air heaters, and can be used as an auxiliary heat source for air conditioners in the summer. You can enjoy economical cooling by using it as a cooling source.

This device uses existing well pipes (1), and all that is left is to prepare a compressor and blower pipe (2), so there is no need for equipment or construction costs. It provides an economical geothermal utilization method and equipment that takes conservation into consideration.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of the device, the second factor is the slope of the main part, and FIG. 3 is a front sectional view of the main part. (1)...well pipe, (2)...blow pipe, (3)...air pressure feeding device, (4)...blocking lid, (5)...delivery pipe, (6
)...Baffle board. April 18, 1985

Claims (1)

[Scope of Claims] 1. A well pipe is buried deep underground, a blower pipe is piped to the deep part of the well pipe, the above-ground opening of the well pipe is closed, and air from above ground is sent through the blower pipe to open the well. A geothermal utilization method characterized by releasing air from the deep part of a well tube, exchanging heat within the well tube, releasing this heat exchanged air from the well tube to the ground, and using this heat exchanged air as a heating and cooling source. 2. The geothermal utilization method according to claim 1, in which air above the ground is pumped by an air pressure sending device such as a compressor installed on the ground. 3. The method of utilizing geothermal heat according to claim 1, wherein the heat exchange air from the well pipe is sent to a desired location through a delivery pipe connected to the ceiling closure lid. 4. A well pipe is buried deep underground, and a blower pipe with baffle plates installed in multiple stages above and below is installed around the outer circumference of the well pipe, and the above-ground opening of the well pipe is blocked, and air above ground is discharged from the blower pipe. The air is sent in and released from the deep part of the well pipe, this released air is heat exchanged within the well pipe, this heat exchanged air is successively hit against the baffle plates to increase the rising speed, and then released from the well pipe to the ground while suppressing the , A geothermal utilization method characterized by using this heat exchange air as a heating and cooling source. 5. A well pipe is buried deep underground, a blower pipe that sends air from above the ground into the well pipe is installed facing deep, and an air pressure feeding device installed above ground is connected to the end of this blower pipe, and the well pipe is placed above the ceiling. A geothermal utilization device characterized in that an opening is closed with a closing lid, and a delivery pipe for sending heat exchange air to a desired location is connected to the closing lid.