Winfoss Xi 'an Metro SF6 gas detection and alarm device application project- SF6在线监测系统_SF6检漏仪_SF6传感器_SF6密度继电器

韦弗斯新闻动态

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SF6安全保障专家

专注于SF6气体检测的专业化

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Winfoss Xi 'an Metro SF6 gas detection and alarm device application project

发布时间：2019-12-05 来源：ydlcb 浏览次数：38次

Wevers Xi 'an Metro Operation Branch 2019 SF6 gas detection alarm device maintenance project in main substation of Line 1, 2 and 3

SF6 gas is widely used in medium and high pressure equipment, and its safety has been widely concerned by people. SF6 gas is heavier than air, and tends to gather in the low area after leakage, which is easy to cause hypoxia in the lower space. In addition, SF6 gas generates harmful and toxic gases after high-temperature reaction in the insulator and metal substances inside the electrical equipment. Once the leak is a great threat to the atmospheric environment and personal safety, Therefore, in the "DLT 639-1997 sulfur hexafluoride electrical equipment operation, test and maintenance personnel safety protection rules" chapter 4 requirements and "JBT 10893-2008 high-voltage combination electrical distribution room sulfur hexafluoride environmental monitoring system", "State Grid Company 18 major anti-accident measures" requirements. An oxygen meter and an SF6 gas alarm meter should be installed in the SF6 distribution device area to ensure the safety of on-site workers.

I. Project name

Maintenance project of SF6 gas detection alarm device (including probe) in main substation of Line 1, 2 and 3 of Xi 'an Metro Operation Branch in 2019

Ii. Project overview

This project mainly conducts maintenance and functional testing of SF6 gas detection and alarm devices in four main substations in the first and second lines, tests the functions of SF6 gas detection and alarm devices in line 3, and verifies the accuracy of the functions. It can restore SF6 concentration status, oxygen concentration, timed ventilation, SF6 concentration and oxygen abnormal automatic ventilation, forced ventilation, voice function, flute sound and sound and light alarm functions at each monitoring unit in the real-time monitoring switch (GIS) room.

Line 1 Jinhua main substation, Line 1 Huancheng Xiyuan main substation, Line 2 Administration Center main substation, Line 2 Exhibition Center main substation, Line 3 Bowen Road main substation, Line 3 Wuzhuang main substation The SF6 gas detection and alarm device produced by Jiangyin Technology Co., Ltd. failed after years of installation and use. The SF6 gas and oxygen concentration in the environment cannot be properly monitored, the SF6 monitoring host cannot display the uploaded data of each monitoring unit, and some functions cannot operate normally, which poses great risks to the personal safety of inspection personnel and equipment operation.

From November 27, 2019 to December 4, 2019, Weavers Testing Technology installation service personnel will work in Line 1 Jinhua Main Substation, Line 1 Huancheng Xiyuan Main Substation, Line 2 Administrative Center main substation, Line 2 Exhibition Center main substation, This includes the removal of SF6 monitoring host, SF6 and oxygen monitoring unit, temperature and humidity monitoring unit and related communication transmission cables of each station, and the installation and power-on testing of the newly purchased SF6 monitoring host and monitoring unit.

The main substation of Bowen Road of Line 3 (replace the host of SF6 monitoring system) and verify each monitoring unit.

Functional test of SF6 gas detection and alarm device in main substation of Wuzhuang main Substation of Line 3 and calibration of monitoring unit.

First, Line 2 SF6 gas detection and alarm device maintenance content:

The SF6 gas detection and alarm device of Jinhua main substation, Huancheng Xiyuan main substation, Administrative center main substation, Exhibition center main substation, Bowen Road main substation has achieved the following functions after maintenance and replacement:

1. Realize the normal display of SF6 gas detection and alarm device monitoring information; Can dynamically display the SF6 concentration status and oxygen content at each monitoring unit in the switch (GIS) room, when the concentration exceeds 1000ppm (national standard value, users can set their own), SF6 concentration status red warning, otherwise green display normal value.

Product parameters:

When the oxygen is below 18.0% (national standard value, user can set it by themselves), the oxygen value in red font prompts, otherwise the actual value (such as 20.5%) is displayed in normal color;

2. Detect the timing ventilation function of the SF6 gas detection and alarm device, and the on-demand ventilation function can be normal;

3. 18% standard oxygen and 1000PPm standard sulfur hexafluoride gas sources were used to test the SF6 and oxygen monitoring unit of the main transformer station of Jinhua Road. After the test, the uploading and display of the monitoring information of the SF6 gas detection alarm device was normal, and the temperature and humidity monitoring was normal;

4. Check that the voice prompt function is normal.

5. The infrared sensing function of the human body is normal;

(2) Test results of SF6 gas detection and alarm device in main substation of Wuzhuang Main Substation of Line 3

1. The detected SF6 gas detection and alarm device has no timing ventilation function, that is, it cannot set a time period to start ventilation within 24 hours throughout the day;

2. After detection, the monitoring host of SF6 gas detection alarm device can normally display the display value of each monitoring unit in the GIS switch room.

After-sales service clause

Wevers Inspection Technology (Shanghai) Co., Ltd. undertakes to complete the delivery, installation and commissioning (including hardware and software installation) of the products by authorized full-time project managers or engineers within the time agreed in the contract, and deliver them to use. The project manager is solely responsible for solving the problems arising in the installation and commissioning process. If the user suffers losses due to our reasons during the installation and commissioning process, the company shall be responsible for the relevant responsibilities. concrete

Pre-sale, in-sale and after-sales service terms are as follows:

1 Quality Assurance: Weavers promises that the products provided for this standard are all new and original products produced after November 1, 2019 that meet the national quality test standards. It is accompanied by product quality certificate, factory inspection report and related explanatory documents.

2 Technical training: Weavers promises to send representatives to the site for installation, commissioning and operation, and be responsible for solving problems related to the manufacture and performance of the contract equipment, and answering questions raised by the buyer within the scope of the contract in detail. Provide hardware and software training to the buyer's related professional and technical personnel.

3 Warranty commitment: The product warranty is 12 months, during the product warranty period there are manufacturing quality problems of the equipment, we are responsible for free repair or replacement. For equipment damage not caused by the buyer's responsibility, we have the priority to provide spare parts and repair obligations.

Technical support: We have the obligation to provide technical cooperation for the auxiliary equipment purchased by the user and related to the Contract equipment, without any additional costs.

5 Handover of drawings: Weavers will appoint professional project managers to carry out installation until acceptance and operation: After the product arrives at the user's side, Weavers will appoint at least two professional and experienced supervisors and test engineers to fully cooperate and coordinate with you to complete the technical services related to the equipment stipulated in the contract, and guide and supervise the installation, commissioning and acceptance test of the equipment. Transfer and train technical documents, drawings, operation and maintenance manuals, equipment characteristics, analysis methods and related precautions in detail to answer and solve technical problems raised by you within the scope of the contract.

6 Installation guarantee: Weavers technicians are responsible for the correctness of all installation work. If the equipment and materials are damaged due to wrong guidance, Weavers shall be responsible for replacement, repair and/or replacement at our expense.

7 Technical training: After the project acceptance, Weavers technicians will provide you with the acceptance report, engineering and electrical drawings, and provide on-site user operation training free of charge. For qualified operators trained by Weavers, operation certificates will be issued to them. For those who are absent or have not mastered them for the time being, further training will be conducted or video demonstration CDS will be sent to ensure proficiency.

8 Service response: During the warranty period, if the product fails, the service network will respond within 2 hours after receiving the user's service request, and rush to the scene to troubleshoot the fault within 48 hours. Under special circumstances, emergency measures will be provided for the user to ensure the normal work of the user. If the repair cannot be given in time within a short period of time, Wevers Xi 'an service network will provide the user with a standby machine to ensure that the user's work is carried out normally.

9 after-sales return visit: the company's customer return visit specialist, according to the service order once a year to the user's machine usage and maintenance service status tracking return visit, for the problems reflected by the user in the return visit, the company designated professional and technical personnel on the spot answer or on-site solution. Provide free technical training to the user when using team member updates.

10 In order to reasonably promote the operation of Weavers product quality system and protect the interests of users, after the warranty period, we provide users with paid maintenance services, but do not charge technical service fees, only charge maintenance parts at cost price.

11 Spare parts guarantee: The products sold by Weavers enter the company's CRM (Customer relationship management system) for record, and notify the warehouse management department to stock special spare parts to ensure timely service for users, and provide spare parts and spare parts with the same performance or better than the original products when upgrading.