A heat dissipation method based on the thermal field model of a cable tunnel without a slot box

A technology of cable tunnel and heat dissipation method, which is applied to the installation of cables, ventilation of mines/tunnels, cable installation in tunnels, etc., and can solve problems affecting the safe operation of equipment and temperature rise of cable channels
CN104196555BActive Publication Date: 2016-05-18SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI MUNICIPAL ELECTRIC POWER CO
Publication Date
2016-05-18

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Abstract

The invention relates to a heat dissipation method based on a slotless box cable tunnel thermal field model. The method includes the following steps of (1) exploring a cable tunnel to obtain parameters of all components of the cable tunnel, (2) building a mathematical model of a cable tunnel thermal field, (3) working out the calorific value of the cable tunnel according to the mathematical model and (4) designing the ventilation mode and the ventilation system of the electric power tunnel. Compared with the prior art, the heat dissipation method has the advantages of being effective and accurate.
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Description

technical field

[0001] The invention relates to the field of electric power transmission, in particular to a heat dissipation method based on a heat field model of a cable tunnel without a slot box Background technique

[0002] In order to solve the increasingly serious power supply problem, it is planned to use the large channel under construction to lay 220kV power cables. For the section of the river-crossing tunnel, the current preliminary plan is to use the divided cable channels in each tunnel as high-voltage cable tunnels and lay 220kV power cables.

[0003] The laying of high-voltage power cables was not considered in the original plan of the tunnel, so the heat generation of power cables was not considered in the design of tunnel ventilation and heat dissipation. The power cable generates heat during long-term operation, resulting in an increase in the temperature of the cable channel, which may affect the safe operation of other equipment in the same space in the ...

Claims

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