Coaxial buried tube heat exchanger and manufacturing method thereof
A buried tube heat exchanger, coaxial technology, applied in the direction of indirect heat exchangers, geothermal collectors, heat exchanger types, etc., can solve the problems of complex manufacturing and installation, low robustness, etc., and achieve simple and constant installation Mechanical resistance strength, easy to manufacture effect
Inactive Publication Date: 2017-09-08
TRIOPIPE GEOTHERM
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- Claims
- Application Information
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Problems solved by technology
[0005] However, such tubes can be unnecessarily complex to manufacture and install, and the design can be less robust than ideal
Method used
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[0032] The inventive concept will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete and will convey Those skilled in the art fully convey the scope of the inventive concept. Like reference numerals refer to like elements throughout the specification.
[0033] figure 1 Shown is a cross-sectional view of one embodiment of a coaxial borehole heat exchanger 1 arranged to be installed in a borehole in the ground so that it is possible to Heat is transferred between heat transfer liquids (such as water) flowing in the borehole heat exchanger 1 .
[0034] The coaxial buried tube heat exchanger 1 includes the outermost tube 3 , the middle tube 5 and the innerm...
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A coaxial borehole heat exchanger includes an innermost pipe and an intermediate pipe arranged coaxially outside the innermost pipe. The intermediate pipe has an inner surface provided with a plurality of axial grooves, and the inner diameter of the intermediate pipe corresponds to the outer diameter of the innermost pipe. The coaxial borehole heat exchanger further includes an outermost pipe arranged coaxially outside the intermediate pipe, wherein the outermost pipe has an inner surface provided with a plurality of axial grooves, and wherein the inner diameter of the outermost pipe corresponds to the outer diameter of the intermediate pipe, wherein the innermost pipe and the plurality of axial grooves of the outermost pipe define liquid flow channels, and wherein the axial grooves of the intermediate pipe define a thermal insulation layer between the axial grooves of the outermost pipe and the innermost pipe. A method of producing a coaxial borehole heat exchanger is also presented herein.
Description
technical field [0001] The present disclosure relates generally to borehole heat exchangers and in particular to coaxial borehole heat exchangers. Background technique [0002] Geothermal involves heating a facility with geothermal energy. An increasingly popular way of utilizing geothermal energy stored in the ground is by means of a borehole heat exchanger (BHE). A BHE consists of one or more pipes installed in a borehole in the ground. A BHE typically has tubes for downflow of the heat transfer fluid in the borehole and tubes for upflow of the heat transfer fluid in the borehole. With the help of a pump to which the BHE is connected, a heat transfer fluid can be circulated in the BHE to continuously absorb heat from the ground or store heat in the ground. [0003] One type of BHE is a U-tube device that consists of two equal cylindrical tubes connected at the bottom of the borehole to allow the heat transfer fluid to flow down in one of the tubes and up in the other ,...
Claims
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IPC IPC(8): F24J3/08F28D20/00F28F1/00F28D7/10
CPCF24T10/10F24T10/17F24T2010/56F28D7/103F28D20/0052F28F1/003F28F2255/16F28F2270/02Y02E10/10Y02E60/14F16L9/18F28D7/12F28F1/40F28F1/422
Inventor T·安德森
Owner TRIOPIPE GEOTHERM