The standard section of Shenyang Hunnan Avenue Expressway Tunnel is 27.5 meters wide and the widened section is 48 meters wide, which is the widest urban expressway tunnel in Northeast China. The preliminary formation of the expressway network system with Changqing Street Expressway and Shengli Avenue Expressway is conducive to supporting the outward dredging of urban functions, opening up the urban pattern, effectively alleviating traffic congestion in the central area, and at the same time strengthening the transportation connection between the peripheral new city and the central area, and realizing the southward shift of the city's second ring function.

In the standard section, the width of the one-way single-hole tunnel can reach 12.25 meters, and the width of a single lane can reach 3.5 meters; The general one-way single-hole three-lane tunnel width is about 11.5 meters, and the width of a single lane is 3.15-3.2 meters. For the decoration project in the tunnel, all the equipment selected are well-known first-line brands at home and abroad. Anhui Huanrui undertook the design, supply, commissioning and operation of the tunnel fire pipeline electric heat tracing project in this project.

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Project application background

The project is located in the northeast region, the extreme low temperature in winter can reach -30.6 °C, and the average temperature is about -10 °C, so it is necessary to prevent the water in the fire pipe in the highway tunnel that has been in a relatively static state for a long time to prevent the fire protection system from being paralyzed due to the phenomenon of freezing blockage, and then it cannot be used in special circumstances, resulting in potential safety hazards.

Anhui Huanrui tunnel fire pipeline electric heat tracing system

Anhui Huanrui Tunnel Fire Pipeline Electric Heat Tracing System (the product used in this project is series constant power electric heat tracing) is to apply the electric heat trace to the surface of the fire pipe by laying straight or winding to supplement heat loss, and adjust the water temperature of each control point of the pipeline system along its own length range, so that the water temperature is maintained in the required temperature range, so as to achieve the purpose of preventing pipeline icing. The tunnel fire pipeline electric heating system is composed of electric heat tracing, power supply system, accessory system, control detection system, etc., and the heat tracing system can be monitored and detected in a timely manner during operation, which is convenient for users to open and close the system in time.

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The working principle of series constant power electric heat tracing

Series constant power electric tracing is an electric heating product made of core wire heating element, that is, the current passed on the core wire with a certain resistance, the core wire emits Joule heat, due to the resistance of the unit length of the core wire and the current passed. It is equal in the entire length, and the heat generation everywhere is equal, and it will not cause low power at the end with the increase of the length of use, and it is suitable for heat tracing and insulation of long-distance pipelines, and is powered by a power point.

At present, the electric heat tracing project has been delivered and running smoothly for nearly a year, and the operation effect and heat tracing efficiency have received good feedback from customers. In the future, Anhui Huanrui will, as always, provide customers with reliable products and professional heat tracing services, promote the application of electric heat tracing systems in more fields, and let users truly feel the convenience of electric heat tracing antifreeze insulation systems.

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Service Hotline:

400-067-0080

Address: East of Hucheng Road, Feidong Economic Development Zone, Hefei, Anhui

Electric Tracing Business Unit:

+86-551-67776888

Electric Floor Heating Business Unit:

+86-551-67776889

Marketing Service Department:

+86-13965109920 Mr. Li

Shenyang Expressway Tunnel Fire Protection System Electric Heat Tracing Project

HUANRUI