CN205878665U

CN205878665U - Geothermal energy extraction element

Info

Publication number: CN205878665U
Application number: CN201620126914.7U
Authority: CN
Inventors: 王作韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-18
Filing date: 2016-02-18
Publication date: 2017-01-11
Anticipated expiration: 2026-02-18

Abstract

The utility model provides a geothermal energy extraction element belongs to ground heat utilization technique, barrel in the internal portion's suit of urceolus setting space 2 -3's centimetre airtight cylindrical cavity room between internal wall of urceolus and the external wall of inner tube, superconducting medium fills into indoor at airtight cylindrical cavity, and the upper and lower tip of interior barrel do not feed through with carbon dioxide medium output tube and carbon dioxide medium input tube are sealed, the external diameter of urceolus is 28 -32 centimetre, and length is 100 -300 rice set up the heat preservation on the outer wall of carbon dioxide medium output tube, this device utilizes carbon dioxide to draw the medium as the geothermal energy, accomplishes the geothermal energy and draws through mutually supporting with superconducting medium, have simple structure, heat exchange efficiency height, low in production cost, energy -concerving and environment -protective, manipulate simply convenient characteristics.

Description

A kind of geothermal energy extraction element

Technical field

This utility model belongs to geothermal energy utilization technology.

Background technology

The living environment corroding us that haze is increasingly severe, develops clean energy resource and uses It has been the instant task of top priority to replace the fire coal producing haze.And fire coal can be replaced, Not only economy but also practical clean energy resource were exactly geothermal energy.At present, people's exploitation to geothermal energy Utilize and be limited to hot spring, the exploitation of surface low temperature and the generating of few hot dry rock, All the time could not scale exploitation application.Its reason is just the absence of scientific and reasonable quarrying apparatus.

Summary of the invention

The purpose of this utility model is aiming at the problem that above-mentioned prior art exists, in combination What heat energy developed is actually needed, it is provided that a kind of geothermal energy extraction element, is had by utilization Good flow performance and the high special gas carbon dioxide of the thermal efficiency is had to be situated between with superconduction as medium Matter matches and carries out geothermal energy extraction, reaches energy-conserving and environment-protective, heat exchange efficiency height, production cost Cheap purpose.

The purpose of this utility model is achieved in that inner barrel suit inner barrel outside, Between described outer cylinder body internal face and inner barrel outside wall surface, setting space 2-3 centimetre is close Close cylindrical chamber, in described airtight cylindrical chamber, be filled with superconductive medium, by inside and outside cylinder Heat collector is constituted with superconductive medium；The upper and lower end portion of described inner barrel respectively with carbon dioxide Medium outlet tube seals with CO 2 medium input pipe and connects, and described outer cylinder body overall diameter is 28-32 centimetre, described outer cylinder body a length of 100-300 rice, it is situated between at described carbon dioxide In matter outlet tube outside wall surface, heat-insulation layer is set, so far constitutes a kind of geothermal energy extraction element.

This utility model makes full use of the characteristic that carbon dioxide heat conductivity is good, as extraction The medium of geothermal energy, and the geothermal energy extraction operation that matched with superconductive medium, have ground Heat energy extraction efficiency is high, apparatus structure simple, operate with simple and convenient, energy-conserving and environment-protective, The feature of low production cost.

Accompanying drawing explanation

Fig. 1 is a kind of geothermal energy extraction element structural representation.

Piece number explanation in figure:

1, CO 2 medium outlet tube, 2, outer cylinder body, 3, airtight cylindrical chamber, 4, Inner barrel, 5, CO 2 medium input pipe, 6, heat-insulation layer.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model optimum implementation is described in detail.A kind of Geothermal energy extraction element, is set with inner barrel 4, at described outer cylinder body 2 inside outer cylinder body 2 The airtight cylindrical chamber 3 of setting space 2-3 centimetre between internal face and inner barrel 4 outside wall surface, It is filled with superconductive medium, by inside and outside cylinder 4,2 and superconduction in described airtight cylindrical chamber 3 Medium constitutes heat collector；The upper and lower end portion of described inner barrel 4 respectively with CO 2 medium Outlet tube 1 seals with CO 2 medium input pipe 5 and connects, described outer cylinder body 2 overall diameter For 28-32 centimetre, described outer cylinder body 2 a length of 100-300 rice, in described titanium dioxide In carbon medium outlet tube 1 outside wall surface, heat-insulation layer 6 is set.

During use, make 2000 meters to 3500 meters deep geothermal wells at a glance, generally The temperature in this interval is at 60 degree to 110 degree Celsius Celsius, according to required extraction geothermal energy Temperature determine the degree of depth of well.In the bottom of well, with Directional Drilling along the borehole wall four circumference tiltedly under The several hole of drill with ferrule, hole at 300 meters to 500 meters, or can utilize fracturing technique at well deeply Bottom carries out the pressure break of multilamellar, and the radius of pressure break is the bigger the better, so, and shaft bottom periphery The heat energy of depths and bottom periphery will converge to endlessly bottom supplement constantly carry The thermal energy taken.The method that this heat energy supplements, can select by one of which, it is also possible to Two kinds use simultaneously.The quantity of hole, the degree of depth, how many, the radius size of the number of plies etc. of pressure break Depending on will be according to the quantity of required geothermal energy.Arrange by inside and outside cylinder 4,2 in bottom The heat collector constituted with superconductive medium, heat collector is generally cylinder, and diameter is at 28-32 li Rice, a length of 100 meters to 300 meters, diameter and length can be according to the diameter of hoistway and length Determine.Arranging two pipes in well, one is CO 2 medium input pipe 5, by well head To bottom, it is connected with inner barrel 4 bottom；Another root is CO 2 medium outlet tube 1, It is connected with inner barrel 4 upper end, bottom passes to well head.Carbon dioxide is noted as medium Enter in CO 2 medium input pipe 5, enter shaft bottom, during entering, along with deeply The increase of degree, well temperature improves constantly, and the temperature of CO 2 medium also improves constantly, And become gaseous state from liquid, and enter heat collector afterwards, under superconductive medium effect, heat collector Become high-temperature region, CO 2 medium through heat collector and after absorbing heat and reaching the temperature of requirement, Entering in CO 2 medium outlet tube 1, return to ground with thermal energy, carbon dioxide is situated between After the thermal energy output of matter, with remaining temperature, reenter carbon dioxide through pressue device and be situated between In matter input pipe 5, move in circles and geothermal energy is constantly extracted on the ground.Superconductive medium can The rate of heat exchange accelerated and improve between geothermal energy and CO 2 medium and efficiency.

Claims

1. a geothermal energy extraction element, it is characterised in that: in outer cylinder body (2) internal sleeve Dress inner barrel (4), described outer cylinder body (2) internal face and inner barrel (4) outside wall surface it Between the airtight cylindrical chamber (3) of setting space 2-3 centimetre, described airtight cylindrical chamber (3) Inside it is filled with superconductive medium, inside and outside cylinder (4,2) and superconductive medium constitutes heat collector； The upper and lower end portion of described inner barrel (4) respectively with CO 2 medium outlet tube (1) and CO 2 medium input pipe (5) seals connection, and described outer cylinder body (2) overall diameter is 28 -32 centimetres, described outer cylinder body (2) a length of 100-300 rice, at described carbon dioxide Heat-insulation layer (6) is set in medium outlet tube (1) outside wall surface.