Anti-ice and anti-snow bridge floor temperature control method

A technology of anti-ice and snow, phase change materials, applied in the direction of chemical instruments and methods, pavement details, heat exchange materials, etc., can solve the problem of limited heat release, etc.

Pending Publication Date: 2021-05-28
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these schemes also produce phase-change cement mortar or phase-change asphalt mixture, which has limited heat release. If the bridge deck is kept at low temperature for a long time, the effect will not be good. This method is only suitable for slightly cold areas.

Method used

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  • Anti-ice and anti-snow bridge floor temperature control method

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Embodiment Construction

[0022] In the present invention, the underground water circulation part in the temperature control system of the bridge deck specifically includes the internal pipe network part of the bridge deck, the underground water intake and the ground water storage part. When the system is working, constant temperature water is extracted from the ground, filtered and precipitated in the sedimentation tank to remove impurities, and then a certain pressure is applied to the constant temperature water to make it flow through the internal pipe network of the road surface to exchange heat for the road surface structure so as to achieve the purpose of temperature control and deicing , and eventually flow back into the ground through the outlet. The main components of the groundwater circulation deicing system include: circulating water pumps, storage tanks, sedimentation tanks, valves, and pipe network systems. The structure of the groundwater circulation system can be found in the applicant'...

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Abstract

The invention provides an anti-ice and anti-snow bridge floor temperature control method which comprises the steps that a pipe network for circulating underground water is laid above a concrete panel of a bridge floor, the pipe network for circulating underground water is arranged below an asphalt pavement layer, and the asphalt pavement layer contains a phase change material; the phase-change material comprises a mixture of n-tetradecane and n-octadecane, the dosage of the n-tetradecane in the mixture is greater than that of the n-octadecane, and the bridge floor temperature control method comprises the following steps: spontaneously controlling the temperature through heat release of the phase-change material in a slightly cold season without consuming external energy; in extremely cold seasons, underground water circulation and the phase-change materials act together to effectively inhibit icing, deicing of the bridge floor is achieved to a certain extent, and driving safety is improved. In addition, in hot seasons, flowing of underground water can effectively reduce the temperature of the pavement and reduce the generation of ruts on the asphalt pavement. In general, the method provided by the invention is good in effect, environment-friendly and low in cost.

Description

technical field [0001] The invention relates to the field of road maintenance, in particular to a method for controlling the temperature of a bridge deck against ice and snow. Background technique [0002] Icing on roads and bridges seriously endangers the driving safety of vehicles. Reducing and suppressing icing on roads and bridges is an important task for the maintenance department at present. Considering factors such as traffic safety, energy consumption, economic benefits and environmental protection, roads and bridges Surface snow-melting and ice-melting technology has become an indispensable part of road maintenance and has very important practical significance. [0003] The existing bridge deck deicing technologies are mainly manual removal, mechanical deicing, deicing agent deicing, microwave deicing, electric heating deicing, anti-icing additive deicing, etc. Among them, manual removal is manual snow removal, which has high labor costs, low efficiency, poor envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/24E01C11/26C09K5/06
CPCC09K5/063E01C11/245E01C11/26Y02E60/14
Inventor 但汉成方旺林王旭东陈钰晶尹海红洪晓宇何振华柏格文
Owner CENT SOUTH UNIV
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