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Cable operation heat environment-based city pipe gallery type cable tunnel ventilation design method

A technology for cable tunnels and design methods, applied in cable installation, design optimization/simulation, cable installation in tunnels, etc., can solve problems such as high temperature in pipe gallery, unfavorable safe and stable operation of various pipelines, fire, etc., to achieve security Safe operation, reliable design results, and the effect of improving safety

Inactive Publication Date: 2017-11-21
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps create an accurate simulation for studying how heat affects the performance or lifespan of electrical wires used within buildings during their lifetime. It also predicts future changes that may occur over time by analyzing data from simulations made through this process. Overall, it provides technical benefits such as better understanding of environmental conditions, more efficient coolant systems, reliability improvement, etc., which are useful tools for ensuring proper functioning of electricity networks throughout its entire life cycle.

Problems solved by technology

This patented technical problem addressed in this patents relates to how to prevent excessive temperatures from affecting electrical equipment such as telecommunication or pipeline systems that run through these areas when they shouldn't get hot enough while still being able to operate safely without overheating them downstream.

Method used

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  • Cable operation heat environment-based city pipe gallery type cable tunnel ventilation design method
  • Cable operation heat environment-based city pipe gallery type cable tunnel ventilation design method
  • Cable operation heat environment-based city pipe gallery type cable tunnel ventilation design method

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0037] Such as figure 1 As shown, this embodiment provides a ventilation design method for urban utility gallery type cable tunnels based on the thermal environment of cable operation, including:

[0038] Step S1: Establish a mathematical model of the cable temperature field.

[0039] Step S11: Establish a geometric model of the cable trench according to the structure of the cable trench and the laying method of the cables.

[0040] In this embodiment, the laying of 6-circuit cables in the cable trench is taken as an example. According to the relevant knowledge in the the...

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Abstract

The invention relates to a cable operation heat environment-based city pipe gallery type cable tunnel ventilation design method. The method comprises the steps of 1) building a cable temperature field mathematic model; 2) calculating and analyzing a temperature field and current-carrying capacity of a cable; and 3) designing a cable tunnel ventilation system, wherein the step 1) specifically comprises the sub-steps of S11, building a cable trench geometric model; S12, obtaining cable parameters; S13, based on the steps S11 and S12, building the cable temperature field mathematic model. Compared with the prior art, the method has the advantages of clear logic structure, practicality, rationality and the like.

Description

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Claims

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Application Information

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Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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