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Disadvantages and hazards of the so-called infrared SF6 online detection system of the pumping type (pumping type)

Disadvantages and hazards of the so-called infrared SF6 online detection system of the pumping type (pumping type)

(Summary description)In some projects, we often encounter the SF6 gas concentration online monitoring system program recommended by many companies.

Disadvantages and hazards of the so-called infrared SF6 online detection system of the pumping type (pumping type)

(Summary description)In some projects, we often encounter the SF6 gas concentration online monitoring system program recommended by many companies.

Information

In some projects, we often encounter the SF6 gas concentration online monitoring system program recommended by many companies. It claims to use the laser infrared principle to detect, but after a closer look, it uses an air extraction solution, the so-called air extraction (or called Active) The SF6 online monitoring system actually has only one gas detector, which is called "analysis and sampling module", and then pulls them one by one near the monitoring point with a lot of rubber hoses, and then analyzes them all the way, and then judges whether there is a leak. ,As shown below:The actual shooting in a substation was only a pneumatic connector, but it was called a gas detector

Pay attention to see if your substation site is this so-called "SF6 gas detector"

There are several problems with this scheme:

1. No matter how many monitoring points there are on site, in fact, the pipeline to the site is only a pneumatic connector for a few dollars, not a gas detector. Some companies do cleverly use a box, but as long as it is a snorkel The ones that come here, not the ones from the signal line, are the same, there is no SF6 sensor inside, you can open it if you don’t believe it

2. Even if it can be analyzed in cycles, first, the cycle period of each point is from half an hour to one hour, so what real-time performance is there? Second, the gas leakage is originally a 1000PPM alarm. When the gas is pumped through the long pipeline to the so-called analysis and sampling module, and the alarm is detected, what is the concentration at the scene? Is there any accuracy at all?

3. The pump used for sampling has been pumping life difficult to meet the quality assurance requirements. At present, the longest life limit on the market is 7000 hours. If pumped in 24 hours, it will be replaced in less than a year. Maintenance is very troublesome. To ensure the service life, it is set in the program for a long time before pumping once, and there is no real-time performance at all!

4. The installation, construction, and maintenance of the entire system are troublesome, and real-time performance cannot be guaranteed.

In short, the so-called pumping, pumping, and active SF6 gas concentration monitoring solutions are completely flickering and irresponsible technical solutions.

Jiuchuang "JD-DL/1 SF6 Gas Concentration Online Monitoring and Alarm System" is a real real-time and online technical solution. Each SF6 gas detector on site is a real transmitter, realizing real-time collection and local digital processing. 485 upload, etc., has strong practicability, reliability, stability, and gas detectors with different precisions are available according to different requirements. It is a professional R&D and production company for this series of products in China!

Installed on site, Jiu Chuang SF6 gas detector

Installed on-site, the Jiuchuang SF6 monitoring host (touch screen, high-end atmosphere)

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