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Method for filling trench comprising a pair of conduits and such filled trench

A technology for filling trenches and conduits, used in pipeline protection, pipeline laying and maintenance, and protection of pipelines through thermal insulation, etc., can solve problems such as increased heat loss and increased heat gain.

Active Publication Date: 2021-08-31
E ON SVERIGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this system is that the insulation of these conduits is not necessarily suitable for both conduits which can lead to increased heat loss or increased heat gain or both from the system

Method used

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  • Method for filling trench comprising a pair of conduits and such filled trench
  • Method for filling trench comprising a pair of conduits and such filled trench
  • Method for filling trench comprising a pair of conduits and such filled trench

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Embodiment Construction

[0042] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to these embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey to the skilled artisan scope of the invention.

[0043] exist figure 1 In , the filled trench 1 is shown. A trench 1 is formed in the ground 9 . The trench 1 comprises a pair of conduits 3a, 3b. The conduits 3a, 3b are surrounded by filling material 4a, 4b. The conduits 3a, 3b are configured to convey fluids of different temperatures in each of these conduits 3a, 3b. The fluid is typically a heat transfer medium.

[0044] The conduits 3a, 3b may be conduits of a district heating system. The conduits 3a, 3b may be conduits of a district cooling system. Th...

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Abstract

A filled trench is disclosed. The filled trench comprises a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient, and the filling material of the second type (4b) has a second thermal conduction coefficient, and the second thermal conduction coefficient is different from the first thermal conduction coefficient.

Description

technical field [0001] The present disclosure relates to a method for filling a trench comprising a pair of conduits and such filled trench. Background technique [0002] A district heating system is a system that distributes heat to multiple places away from where the heat is generated. Typically, these systems consist of a central heat generating site with conduits distributing a heated heat transfer medium, most commonly water, to multiple sites in order to transfer heat from the heated heat transfer medium to the multiple sites. The heat transfer medium is distributed by pressurizing it. These conduits are arranged in pairs, with the outlet conduit being supplied with heated heat transfer medium and the return conduit returning the heat transfer medium after use. The heated heat transfer medium is used at each remote location by taking it from the outlet conduit and returning it to the return conduit. [0003] In order to simplify the construction of the system, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/14F16L59/15F16L1/028
CPCF16L1/028F16L59/14F16L59/15
Inventor 佩尔·罗森雅各布·斯科格斯特罗姆弗雷德里克·罗森奎斯特本特·林道夫
Owner E ON SVERIGE