Shenzhen Metro Integrated Building Fire Alarm System Solution

System Requirements Analysis
According to the trial version 4.2.2, Article 4, and 4.2.3, Article 9 of the "Regulations for Quality Inspection and Evaluation of Fire Protection Facility Installation in Buildings" (DB37/242-2008), the water level of the fire water pool and the fire water tank should be displayed in the fire control room. Based on fire regulations, ensuring the full water level of the fire water pool and the high-level fire water tank, and remote monitoring in the fire control room is crucial. If the fire control room does not have a liquid level indicator for the fire water pool and high-level fire water tank, according to fire regulations, there is a high risk of failing the building fire protection facility installation quality inspection and evaluation acceptance. Therefore, it is necessary to monitor the real-time liquid level of the fire water pool and tank in the fire control room, which requires the use of the WH311 fire water tank level indicator.

System Overview
The WH311 level sensor probe is directly placed at the bottom of the user's fire water pool and tank. The WH6 fire-specific level indicator is installed in the fire control room, connected by a 2*1.5 square shielded cable. It displays the real-time fire water level and has a high and low level alarm system to ensure the fire water level remains high.

Application Challenges:
1. Electromagnetic interference exists in the monitoring environment.
2. Requires stable and accurate product operation.

Solution Advantages:
  1. Provides various product solutions to meet different operating conditions.
  2. Customizable products to address complex operating conditions.
  3. Excellent product quality, high precision, high stability, and high protection level.

Project Description

Project Requirements
The Shenzhen Metro Integrated Building in Pingshan occupies an area of63hectares‌. This integrated transportation hub is located in eastern Shenzhen, at the junction of Longgang and Pingshan. The project area is enclosed by Danzi Avenue, Longping Road, Station Front Road, and ShenShan Road.‌12. The Pingshan Integrated Transportation Hub is not only a high-speed rail integrated hub in eastern Shenzhen, but also serves the four districts of Pingshan, Longgang, Yantian, and Dapeng, as well as parts of Huizhou Huiyang and Daya Bay.

Customer Requirements

The Shenzhen Metro Integrated Building has2fire water pools, with a pool height of5meters. Real-time water level display is required in the fire control room, including simulated water level display and high/low level alarms.

Project Key Points Analysis：

1，2underground fire water pools, with a height of5meters;

2the fire water pool level signal needs to be transmitted300meters to the fire control room for display, using an anti-interference design for long-distance transmission;

3not only real-time level display is required, but also intuitive percentage light column indication of the fire water pool water level, and high/low level alarm.

Needs Analysis

Diagram1 GB 50974-2014 4.3.9 Clause

According to the "Regulations for Quality Inspection and Evaluation of Building Fire Protection Facility Installation", 4.2.2 Article 4 and 4.2.3 Article 9 stipulate that the water levels of the fire water pool and tank should be displayed in the fire control room. Therefore, a WH311 fire-specific level indicator needs to be installed in the fire control room.

Solution Schematic Diagram