For the taper heat exchange sleeve structure of ground rock heat absorption
Technical field
The utility model is related to mid-deep strata well water heat and ground rock heat utilization equipment technical field, more particularly to a kind of for ground
The taper heat exchange sleeve structure of rock heat absorption.
Background technology
Enhanced geothermal system, also known as hot dry rock are that general temperature is more than 200 DEG C, and the thousands of rice of buried depth, there is no streams for inside
The high heat rock mass of body or only a small amount of underground fluid.The ingredient of this rock mass can change it is very big, the overwhelming majority for Mesozoic Era with
The middle acidity come invades metamorphic rock of people's rock but it is also possible to be Middle Cenozoic, the even huge blocky sedimentary rock of thickness.Ground temperature ladder
Degree is also known as " geothermic gradient " or " geothermal gradient ", and it is increased with depth to refer to the formation temperature that the earth is not influenced by atmospheric temperature
Growth rate represents the parameter of earth interior non-uniform temperature distributed degrees.Different ground temperature Grad are different, and general buried depth gets over depths
Temperature value it is higher.It is also increasing to the consumption of the energy with the continuous improvement of national economy, along with traditional energy profit
The pollution brought with insufficient is also increasingly severe, such as the cinder of coal burning generation and flue gas etc. can cause environment dirty
Dye, and the heating of the heat pumps such as conventional air source heat pump, water resource heat pump or water heating, are limited by factors such as seasonal temperature, Changes in weather
Greatly, cause heating efficiency low, it is impossible to meet client and uninterruptedly use in the four seasons.Therefore, it in order to reduce environmental pollution, studies and opens
Adopting new energy has become an important goal of sustainable development.In new energy, the geothermal energy of earth interior is due to having storage
Amount is big, it is pollution-free the features such as, also exploited and utilized by people more and more.
Invention content
For deficiency of the prior art, the utility model provides a kind of taper heat exchange sleeve knot for ground rock heat absorption
Structure, it is simple in structure, easy to use, it is not limited by factors such as season, weather, heating efficiency is high, strong applicability, energy-saving and emission-reduction.
According to designing scheme provided by the utility model, a kind of taper heat exchange sleeve structure for ground rock heat absorption, packet
Containing the heat exchange sleeve component in deep layer well, the heat exchanger connection of the heat exchange sleeve component and heating system is described
Heat exchange sleeve component include outer tube body, interior tube body and the inlet and outlet set on interior tube body both ends, the outer tube body and
For interior tube body using pyramidal structure, the outer tube body is bonded setting with deep layer well inner wall, and the interior tube body is internal diameter of tube body
Size is less than the import internal diameter of interior tube body by being exported to the reducing tube body of import transition, the exit inside diameter of interior tube body;Pass through inner tube
Outer tube intracoelomic cavity is divided into low temperature intake antrum and high-temperature water outlet chamber by body, and high-temperature water outlet chamber is set in inner tube intracoelomic cavity, heat exchange
The cooling water outlet of device is connect with low temperature intake antrum, and the hot water inlet of heat exchanger is connect with high-temperature water outlet chamber.
Above-mentioned, the outer tube body internal diameter is more than interior tube body outer diameter;Transition is gradually from top to bottom for internal diameter size for outer tube body
The reducing tube body of change, upper inner diameter are less than lower inner diameter.
Above-mentioned, the outer tube body inner wall is provided with threaded bosses.
Preferably, the threaded bosses are structure as a whole with outer tube body.
The beneficial effects of the utility model:
The utility model is simple in structure, novel in design, reasonable, is placed in deep layer well by the heat exchange sleeve component of reducing
Portion absorbs temperature stabilization, the earth rock heat of heat abundance, then with inverse Carnot cycle principle, energy is transmitted by low temperature
To at high temperature;Make that water at low temperature retention time in casing is longer, and fully with high temperature rock exchanges heat, heating efficiency is high;It can not be by
The conditions such as environment, temperature limit, and stable work in work, reliable, can promote the use of on a large scale.
Description of the drawings:
Fig. 1 is one of structure diagram of the utility model;
Fig. 2 is the use principle figure of the utility model;
Fig. 3 is the second structural representation of the utility model;
Fig. 4 is the structure diagram of outer tube body shown in Fig. 3.
Specific embodiment:
Figure label, label 11 represent deep layer well, and label 12 represents heat exchange sleeve component, and label 13 represents heat exchanger,
Label 14 represents compressor, and label 16 represents fluid reservoir, and label 17 represents user's heating system, and label 18 represents four-way valve, mark
Number 1 represents interior tube body, and label 2 represents outer tube body, and label 3 represents threaded bosses, and label 101 represents low temperature intake antrum, label 102
Represent high-temperature water outlet chamber.
To make the purpose of this utility model, technical solution and advantage clearer, clear, below in conjunction with the accompanying drawings and technical side
Case is described in further detail the utility model.
Embodiment, it is shown in Figure 1, a kind of taper heat exchange sleeve structure for ground rock heat absorption is provided, comprising set on depth
The heat exchanger of heat exchange sleeve component in layer well, the heat exchange sleeve component and heating system connects, the Heat exchange jacekt
Tube assembly includes outer tube body, interior tube body and the inlet and outlet set on interior tube body both ends, and the outer tube body and interior tube body are equal
Using pyramidal structure, the outer tube body is bonded setting with deep layer well inner wall, and the interior tube body is internal diameter of tube body size by going out
Mouthful to import transition reducing tube body, the exit inside diameter of interior tube body is less than the import internal diameter of interior tube body;By interior tube body by outer tube
Intracoelomic cavity is divided into low temperature intake antrum and high-temperature water outlet chamber, and high-temperature water outlet chamber is set in inner tube intracoelomic cavity, the cold water of heat exchanger
Outlet is connect with low temperature intake antrum, and the hot water inlet of heat exchanger is connect with high-temperature water outlet chamber.It is shown in Figure 2, vertically greatly
Surface direction, with the increasing of depth, ground rock internal temperature can increase, and heat is more concentrated;Two layers totally of double-tube heat exchanger, outer layer
Water is flowed from above to below to exchange heat with ground rock, the temperature raising when water is to sleeve bottom, then by the bottom-up flowing of set inner tube layer,
Heat is carried to exchange heat to heat pump unit;With reference to inverse Carnot cycle principle, the heat for being derived from deep layer the earth rock is transmitted to heat pump unit system
Cryogen, refrigerant transfer heat to heating or water heating at user again, not by limits such as regional natural environment, seasonal temperature variations
System, taper heat exchange sleeve are placed on inside deep layer well, absorb temperature stabilization, the earth rock heat of heat abundance, and heating efficiency is high,
It can promote the use of on a large scale.
Above-mentioned, the outer tube body internal diameter is more than interior tube body outer diameter;Transition is gradually from top to bottom for internal diameter size for outer tube body
The reducing tube body of change, upper inner diameter are less than lower inner diameter.The pyramidal structure of outer tube body and interior tube body, top section is small, and lower part is cut
Face is big, can make that heat exchange sleeve component lower part amount retained is more, and retention time is longer, and making water, adequately with high temperature rock exchanges heat;Together
When internal layer top sectional area it is small, can increase water flowing speed, water can be reduced in the Bottomhole pressure time, dissipated so as to reduce hydro-thermal amount
It loses.
Above-mentioned, referring to shown in figure Fig. 3 and 4, the outer tube body inner wall is provided with threaded bosses;Outer tube body inner wall uses
Helicitic texture can increase heat transfer area, and water in pipe is made preferably to absorb rock stratum heat, further improves heating efficiency.
Preferably, the threaded bosses are structure as a whole with outer tube body, simple in structure, easily make, and effectively reduce and apply
The work activity duration improves efficiency.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or using the application.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.