Control method of safe and energy-saving ventilating system of highway tunnel

Abstract

The invention discloses a control method of a safe and energy-saving ventilating system of a highway tunnel. The ventilating system comprises detector groups, a control center, fans and an energy storage device. The control method comprises the steps: 1, the control center acquires a value of each state variable; 2, the control center controls the fans to work in a power generation and energy storage state or an electric state by determining whether each state variable is within a normal range or not; and 3, when the fans work in the electric state, the control center determines whether wind speed is within the normal range or not and controls the fans to work under a forward rotating ventilating state or a reverse rotating wind speed reducing state. Compared with an existing tunnel air exhaust system, on the one hand, the power generation work state of the fans is added, wind energy of the tunnel is used for power generation when the tunnel does not need ventilating, electric energy is stored in the energy storage device, and energy saving is achieved; and on the other hand, the electric reverse rotating state of the fans is added, and the wind speed and wind directions in the tunnel can be controlled according to site conditions, so that the effects of accurate smoke exhaust and reduction of concentration of toxic gas and smoke dust are achieved.

Description

Technical field [0001] The invention relates to the technical field of ventilation and smoke exhaust of highway tunnels, in particular to a control method of a safe and energy-saving ventilation system for highway tunnels. Background technique [0002] When a car is driving, it often needs to consume a lot of oxygen and emit a lot of exhaust gas, such as CO 2 , CO, nitrogen oxide compounds, etc. As the tunnel is a relatively sealed space, if these gases cannot be discharged immediately, it will have an adverse effect on the human body. Not only that, the exhaust gas emitted by vehicles often contains some solid particles. When the concentration of solid particles in the tunnel is high, the visibility will be reduced, which will affect the driving safety of the driver. On the other hand, the tunnel is a relatively sealed space, and only relying on natural wind for oxygen supplementation and waste gas treatment often fails to achieve the expected results. Therefore, it is very im...

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Problems solved by technology

[0003] In the existing technical solutions, the wind speed is often controlled by controlling the start and stop of the fan unit to speed up the air circulation in the tunnel and speed up the ventilation process, but there are the following disadvantages: 1. It is impossible to adjust the air volume according to the required air volume; 2. 1. The wind speed in the event of a fire cannot be reasonably controlled by the fan; 3. The wind energy of the tunnel cannot be reasonably used when ventilation is not needed

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