CN104930898A - Enhanced geothermal heat exchange pipe - Google Patents
Enhanced geothermal heat exchange pipe Download PDFInfo
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- CN104930898A CN104930898A CN201510390694.9A CN201510390694A CN104930898A CN 104930898 A CN104930898 A CN 104930898A CN 201510390694 A CN201510390694 A CN 201510390694A CN 104930898 A CN104930898 A CN 104930898A
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- heat exchange
- heat
- heat exchanger
- exchanger tube
- exchange pipe
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Abstract
The invention relates to an enhanced geothermal heat exchange pipe which comprises a heat exchange pipe body and multiple enhanced heat exchange fins. The enhanced heat exchange fins are welded to or inlaid in the peripheral wall of a pipeline of the heat exchange pipe, the enhanced heat exchange fins are symmetrically distributed on the peripheral wall of the heat exchange pipe in a star-shaped mode at equal intervals, and the enhanced heat exchange fins are distributed from the position under a heat preservation section of the heat exchange pipe to the bottom of the heat exchange pipe. By adopting the enhanced geothermal heat exchange pipe, the purposes of increasing the contact area of a heat exchanger and a high-temperature rock stratum and hot water, improving the heat exchange efficiency, enhancing the heat exchange capacity, reducing the heat exchanger quantity, lowering the engineering cost and the like are achieved, and the enhanced geothermal heat exchange pipe is an efficient heat exchange device which can enhance the geothermal energy development.
Description
Technical field
The present invention relates to deep geothermal heat heat exchanger tube, especially relate to a kind of enhancement mode underground heat heat exchanger tube of geothermal energy exploitation.
Background technology
Geothermal energy (Geothermal Energy) is the natural heat energy extracted by the earth's crust, and this energy from the lava of earth interior, and exists with heating power form, is a kind of renewable sources of energy.China at present geothermal utilization, to be directly utilized as master, is auxiliary with indirect utilization; Direct utilization is recovery of subterranean thermal water utilization underground heat, and indirect utilization is, by heat-exchanger rig, geothermal energy is taken out utilization, and from long term growth, directly utilizing is unsustainable underground heat exploitation Land use systems, and indirect utilization is continuable underground heat exploitation Land use systems.Indirect utilization is to underground drilling deep-well, setting of casing in deep-well, outer for pipe geothermal energy is exchanged on working cycles medium by tube wall heat exchange, finally by circulatory mediator, heat energy is exported, this mode Problems existing is, heat exchanger tube finite surface area is not high with the heat exchange efficiency of high ambient temperatures rock stratum and hot water.
Summary of the invention
The problem that heat exchange area is little, heat exchange efficiency is low is there is for traditional deep layer heat-exchanger rig, the object of this invention is to provide a kind of enhancement mode underground heat heat exchanger tube, the contact area of increase heat exchanger and high-temperature rock stratum and hot water can be realized, improve heat exchange efficiency, strengthen exchange capability of heat, reduce heat exchanger quantity, save the objects such as engineering cost.
The object of the invention is to be achieved through the following technical solutions: a kind of enhancement mode underground heat heat exchanger tube, comprise heat exchanger tube (1) and strengthen heat exchange fin (2), some enhancing heat exchange fins (2) weld or are embedded on heat exchanger tube (1) pipeline periphery wall, strengthening heat exchange fin (2) is equidistantly arranged symmetrically on heat exchanger tube (1) periphery wall in star, strengthen heat exchange fin (2) and arrange below the soaking zone of heat exchanger tube (1) until heat exchanger (1) bottom.
The number of described enhancing heat exchange fin (2) is between 4 ~ 40, its thickness (5) is 0.1 ~ 0.15 times of heat exchanger tube (1) caliber (4), its width (6) is 0.25 ~ 1 times of heat exchanger tube (1) caliber (4), and the quantity and the size that strengthen heat exchange fin are determined according to heat exchanger tube (1) pipe diameter and the calculating of system heat load demand.
The cross sectional shape strengthening heat exchange fin (2) is rectangle or triangle, and the shape after other simple deformation.
The present invention has the following advantages:
(1) the present invention can solve Problems existing in background technology, increases heat exchange area, improves heat exchange efficiency, reduces line size, reduces wellbore construction expense.
(2) the present invention according to the quantity of thermal load demands determination enhancement mode heat exchanger tube fin and size, can ensure that underground heat exchange system efficiently can be swapped out sufficient heat and meet thermic load needed for system.
(3) the present invention can reduce the quantity of heat exchanger, reduces construction cost and difficulty.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2,3,4 strengthens heat exchange fin typical section schematic diagram for the present invention.
Detailed description of the invention
A kind of enhancement mode underground heat heat exchanger tube, comprises heat exchanger tube 1, strengthens heat exchange fin 2 and accumulation of heat rock stratum 3.Strengthening heat exchange fin 2 welds or is embedded on pipeline 1 outer wall, strengthen heat exchange fin 2 to be equidistantly arranged symmetrically with in star, according to the length of heat exchanger, diameter and thermic load, the concrete geological condition detected in conjunction with drilling well calculates the insulation length determining heat exchanger, to strengthen below heat exchange fin 2 location arrangements to heat exchanger tube 1 soaking zone, until bottom heat exchanger tube 1.The number of described enhancing heat exchange fin 2 is between 4 ~ 40, its thickness 5 is 0.1 ~ 0.15 times of heat exchanger tube 1 caliber 4, its width 6 is 0.25 ~ 1 times of heat exchanger tube 1 caliber 4, and the quantity and the size that strengthen heat exchange fin are determined according to heat exchanger tube 1 pipe diameter and the calculating of system heat load demand.The cross sectional shape strengthening heat exchange fin 2 is rectangle or triangle, and the shape after other simple deformation.
As can be seen from Figure of description 1, be embedded in the heat exchanger tube 1 in accumulation of heat rock stratum 3 and pass into heat exchange circulatory mediator, after heat exchanger tube 1 outside is set up and is strengthened heat exchange fin 2, overall heat exchange area increases, by strengthen the number of heat exchange fin 2 between 4 ~ 40, the width 6 that strengthens heat exchange fin 2 is 0.5 times of heat exchanger tube 1 caliber 4, relative to heat exchanger tube 1 heat exchanger without enhancing heat exchange fin, its heat exchange area will increase 2-4 doubly, and heat exchange efficiency improves more than 50%.
Above content is in conjunction with optimum embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention is only confined to this; according to design of the present invention; can also make some simple conversion or replacement according to concrete condition, these simple transformation or replacement all should be considered as belonging in scope of patent protection of the present invention.
Claims (3)
1. an enhancement mode underground heat heat exchanger tube, comprise heat exchanger tube (1) and strengthen heat exchange fin (2), it is characterized in that: some enhancing heat exchange fins (2) weld or be embedded on heat exchanger tube (1) pipeline periphery wall, strengthening heat exchange fin (2) is equidistantly arranged symmetrically on heat exchanger tube (1) periphery wall in star, strengthen heat exchange fin (2) and arrange below the soaking zone of heat exchanger tube (1) until heat exchanger tube (1) bottom.
2. a kind of enhancement mode underground heat heat exchanger tube according to claim 1, it is characterized in that: the number of described enhancing heat exchange fin (2) is between 4 ~ 40, its thickness (5) is 0.1 ~ 0.15 times of heat exchanger tube (1) caliber (4), its width (6) is 0.25 ~ 1 times of heat exchanger tube (1) caliber (4), and the quantity and the size that strengthen heat exchange fin are determined according to heat exchanger tube (1) pipe diameter and the calculating of system heat load demand.
3. a kind of enhancement mode underground heat heat exchanger tube according to claim 1 and 2, is characterized in that: the cross sectional shape strengthening heat exchange fin (2) is rectangle or triangle, and the shape after other simple deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510390694.9A CN104930898A (en) | 2015-07-06 | 2015-07-06 | Enhanced geothermal heat exchange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510390694.9A CN104930898A (en) | 2015-07-06 | 2015-07-06 | Enhanced geothermal heat exchange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104930898A true CN104930898A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510390694.9A Pending CN104930898A (en) | 2015-07-06 | 2015-07-06 | Enhanced geothermal heat exchange pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN104930898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943567A (en) * | 2021-04-16 | 2021-06-11 | 中国华能集团清洁能源技术研究院有限公司 | System with rib type fan blade deicing pipeline and working method thereof |
-
2015
- 2015-07-06 CN CN201510390694.9A patent/CN104930898A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943567A (en) * | 2021-04-16 | 2021-06-11 | 中国华能集团清洁能源技术研究院有限公司 | System with rib type fan blade deicing pipeline and working method thereof |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |