Monitoring system and monitoring method for liquid level of fire-fighting high-altitude water tank for tunnel

Abstract

The invention discloses a monitoring system and a monitoring method for a liquid level of a fire-fighting high-altitude water tank for a tunnel. The monitoring system comprises a pressure sensor, a flow sensor and a monitoring system, wherein the pressure sensor and the flow sensor are arranged on a fire-fighting main tube from the high-altitude water tank to the tunnel, and the monitoring system is used for receiving a water pressure signal of the pressure sensor and a water flow signal of the flow sensor and calculating a liquid level value of the high-altitude water tank. By adopting the monitoring system provided by the invention, the liquid level of the high-altitude water tank, the water pressure condition and the water usage condition (including water leakage or fight-fighting water theft) can be remotely known through calculating and the fault or water level can be monitored in real time; when the fire-fighting main tube is under the abnormal conditions, such as serious leakage or blocking, the pressure state of the fire-fighting main tube of the tunnel is correctly reflected so as to timely eliminate the fire-fighting potential safety hazard, so that the high-altitude water tank can safely run for a long period of time, the monitoring efficiency is greatly increased, the waste of water resource is reduced and the operation cost of a road is lowered; the monitoring system can prevent theft; cables are effectively protected; the maintenance cost is lowered; and the potential personal safety hazard caused by climbing maintenance is eliminated.

Description

technical field [0001] The invention relates to a monitoring system for a high level pool, in particular to a liquid level monitoring system and a monitoring method for a tunnel fire fighting high level pool. Background technique [0002] Tunnels are an important part of roads in mountainous countries, especially for expressways, where tunnels are relatively simple means of access. With the rapid development of economic construction and science and technology, highways, railways and other road forms rely more on tunnels, especially highways have gradually become the main force of road transportation, and are inseparable from people's production and life. As an important means to ensure the safe and smooth operation of expressways, expressway tunnel fire protection occupies an increasingly important position. [0003] The fire protection of highway tunnels generally adopts the method of storing water in high-level pools and backing them up. The high-level pools must have a s...

AI Technical Summary

Problems solved by technology

The above-mentioned monitoring system can play a corresponding monitoring role, but there are the following problems: 1. Since there is a vertical drop of tens of meters or even hundreds of meters between the high-level pool and the fire pump room, the ultrasonic liquid level gauge needs hundreds of meters or even Several kilometers of power supply cables and signal cables, because the cables have been in the wilderness for a long time, are prone to theft, and the service life is short, which increases the cost of use; 2. The ultrasonic level gauge is on the top of the high-level pool, far away from the highway , It is very inconvenient to maintain the ultrasonic liquid level gauge, and sometimes it will cause the safe operation of the maintenance personnel; 3. It all depends on the trouble-free operation of the entire system, without remote monitoring, and the failure or water level cannot be monitored in real time, which is prone to safety accidents ;4. The liquid level measured by the ultrasonic liquid level gauge in the high-level pool indirectly reflects the pressure condition of the fire main pipe of the tunnel. When the ultrasonic liquid level gauge is damaged, the water leakage and illegal use of the fire water pipe in the tunnel cannot be monitored. fire water conditions; or when there is a large leakage or blockage of the main pipe, the measured value of the ultrasonic liquid level gauge cannot correctly reflect the pressure state of the fire main pipe of the tunnel, thus causing fire safety hazards; the above problems make it impossible for high-level pools to Long-term safe operation, and for water-deficient areas and areas where fire-fighting water is not easy to obtain, the maintenance of fire-fighting water in the tunnel is more important, and the above problems will lead to fire-fighting water leakage in the tunnel, illegal use of fire-fighting water (such as using fire-fighting water Car wash, vegetable wash, etc.), etc., pose a great threat to the fire safety of tunnels, and also cause waste of water resources and increase road operating costs

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