1、 Enterprise Overview

Lanzhou New Area Shuangliang Thermal Power Co., Ltd. was established inOn July 31, 2013, it was fully established by Gansu Shuangliang. According to the special heating plan of Lanzhou New Area, the company is responsible for the construction and operation management of the centralized heating project in the area south of Weishi Road in Lanzhou New Area. The construction and operation of this project can maximize the restriction of gradually settled enterprises setting up scattered coal-fired small boiler rooms, thereby reducing environmental pollution to the urban area, improving environmental hygiene, enhancing winter air quality, improving heating quality, and realizing the utilization of low-quality fuels and garbage.

　　The total length of the Shuangliang Thermal Heating Pipeline Network Project in Lanzhou New Area is approximatelyThe Gansu branch has undertaken the construction of two sections of the heating pipeline in the new area, namely Section I and Section V, with a total length of 2 × 17.9 kilometers. The main pipeline is mainly distributed on the main roads of Lanzhou New Area, including Jing 12th Road, Wei 6th Road, Wei 8th Road, and Wei 9th Road. The pipeline diameter is within the range of Φ 159 × 5 to Φ 1220 × 14, with a designed operating pressure of 1.6MPA. The supply water temperature reaches 130 ℃, and the return water temperature reaches 70 ℃. The excavation depth of the pipeline trench is 3.5-3.8 meters, with a width of 5.5 meters at the upper part and 3.2 meters at the lower part. The supply and return water pipelines are laid side by side, with a center distance of 1.5 meters.

China Heating Information Network learned that the project belongs to municipal engineering and livelihood engineering, with strong professionalism, high quality requirements, short construction period, involving multiple departments, and difficult coordination. The project department will carry forwardThe work style of "not delaying or slacking off for a day", facing difficulties head-on, ensuring the overall requirements of quality, safety, and schedule, fulfilling the solemn commitment to the owners, and ensuring smooth heating in Lanzhou New Area.

2、 Overall project situation

　　The core of the Lanzhou New Area Shuangliang Thermal Monitoring Center for real-time monitoring and alarm of substations is provided by Jiangsu Sifei Electric Co., LtdThe Sfere PMS power monitoring software platform relies on the S3100 series front-end communication management machine provided by Sfere Company to achieve a series of functions such as real-time data collection of all distribution cabinets, immediate reminders of operational alarms/accidents (supporting alarm SMS reminders), and historical data recording.

3、 Network topology structure

　　 The Shuangliang Thermal Power Monitoring System in Lanzhou New Area adopts a three-layer structure, consisting of a power monitoring host configured in the fire monitoring roomThe S3100 series front-end communication management machine consists of a multifunctional instrument installed in the distribution room and a microcomputer integrated protection device. The S3100 series front-end communication management machine has RS-485 and RJ45 Ethernet interfaces, providing Modbus RTU and Modbus TCP communication protocols for easy access to other standard systems.

4、 Monitoring scope and functions

This system mainly monitors the 10kV substation of end users, realizes online real-time alarm information monitoring, data and status display recording, and responds to alarm accidents within 5 minutes for each substation to minimize user labor costs and power outage time.

5、 Real time monitoring

　　 Capable of displaying monitoring data and protection status of all circuits within the substation in a single system diagram. And distinguish the switch status of each circuit in real time.

6、 Electricity inquiry

　　By querying historical data through reports, it is possible to query electrical energy data and protection records.

7、 Alarm information

　　Pop up display of real-time alarm accident signals to remind duty personnel, ensuring that all alarm accident information can be responded to in a timely manner.

8、 Communication status

　　Real time display of the communication status between each distribution cabinet monitoring device and the front-end communication management machine.