Fire alarm display solution for Huawei's Songshan Lake headquarters building

System Requirements Analysis
According to the trial version 4.2.2, Article 4, and 4.2.3, Article 9 of the "Regulations for the Inspection and Evaluation of Installation Quality of Building Fire Protection Facilities" (DB37/242-2008), the water level of the fire water pool and fire water tank should be displayed in the fire control room. The ability to ensure that the fire water pool and high-level fire water tank are full, and the importance of remote monitoring in the fire control room, are crucial according to the fire regulations. If the fire control room does not have a liquid level indicator for the fire water pool and high-level fire water tank, there is a high risk of failing the acceptance inspection of the building fire protection facilities installation quality according to the fire regulations. 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 liquid level display.

System Overview
The WH311 level sensor probe is directly placed at the bottom of the user's fire water pool tank. The WH6 fire-dedicated level display 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 that the fire water level is always high.

Application Challenges:
1. Electromagnetic interference exists in the monitoring scene;
2. The product is required to operate stably and accurately.

Solution Advantages:
  1. Provide a variety of product supporting schemes to cope with different working conditions;
  2. Customizable products to meet complex working conditions;
  3. Excellent product quality, high precision, high stability, and high protection level.

Project Description

I. Specific Needs of Typical Users

Specific Requirements

User: Huawei Songshan Lake Headquarters

Requirement: The Huawei building has three fire water pools, each 5 meters high. It requires real-time water level display in the fire control room, simulated water level display plus high and low level alarms.

Project Key Points Analysis:

1. Three basement fire water pools, 5 meters high;
2. The fire water pool level signal needs to be transmitted 300 meters to the fire control room for display, using an anti-interference design for remote transmission;
3. Not only real-time level display is required, but also intuitive percentage light column indication of the fire water pool level, and high and low level alarm.

II. Huawei Equipment Selection and Setting Requirements Original:

III. Scheme Diagram

Figure 1 Fire-dedicated light column level display scheme diagram

The Wanhe instrument solution was adopted by the user among the eight product solutions received by Huawei. The user designed the product procurement plan, and the Shenzhen Installation General Company undertook the construction.

IV. Some Typical Cases

This solution has been successfully applied to
1. Shenzhen landmark building --- Ping An Finance Tower
2. GAC Guangzhou factory fire and life water pool renovation project
3. Xiamen-Shenzhen Railway Tunnel Fire Center
4. Huai'an County High-speed Railway Station, Zhangjiakou
5. Information Hub Building -- Shenzhen Telecom Headquarters
6. Shenzhen Bay No.1 Fire Water Pool Level Monitoring Project
7. Vanke Data Air Conditioning Water Cooling Level Monitoring Project
8. Shenzhen Jiahua Domain Plaza

V. Product Photos

VI. Product Certification

1. China Certification and Inspection Group Inspection Report
2. CE FCC Certification
3. RoHS Certification
4. TÜV Rheinland SGS Third-Party Calibration Certificate
5. Shenzhen Institute of Metrology 0.25-level Inspection Certificate