Siemens fire alarm system manufacturers have conducted statistics on numerous cases of gas spraying and analyzed the causes of false spraying, so that the false spraying of gas fire extinguishing systems can be detected and controlled, achieving the goal of safe use of gas fire extinguishing systems. Below, Siemens fire alarm system manufacturers will give you a specific explanation of the reasons for false spraying

1. Mistaken spraying caused by construction

① Short circuit the emergency start button line during construction and renovation;

② After testing or acceptance, when installing the start-up valve body, the spring supporting the striker is lost, the striker falls, and punctures the diaphragm;

③ During the process of replacing and transporting gas cylinders.

2. Gas fire extinguishing controller causing accidental spraying

① The machine itself has design defects and poor anti-interference ability;

② The machine is in an extended service state and its anti-interference ability has decreased;

Both are unable to withstand electromagnetic interference caused by changes in the power grid, intercom or mobile phone intercom, resulting in incorrect output of the gas fire extinguishing controller.

3. Accidental spraying caused by human error

① Press the emergency start button as an access control button;

② Cleaning personnel accidentally press the emergency start button while wiping it;

③ Idle personnel have idle hands.

4. Misspraying caused by maintenance and upkeep

① When conducting gas fire extinguishing simulation start-up tests, the start-up valves were not fully detached;

② There was an error in coordinating the maintenance and testing process. The valve body has been restored and smoke and temperature tests are still being carried out there;

③ When the test was completed and the starting valve was installed, the firing pin of the electromagnetic starter was not detected to be in the starting state, and the installation instantly punctured the diaphragm.

5. Mistaken spraying caused by operational errors

When performing operations such as "noise reduction", "reset", or "spray stop", press the "emergency start" button.

6. Programming errors causing erroneous spraying

Write the "AND" logical relationship of the first and second alarms as the "OR" logical relationship, and an alarm will be triggered.

7. Floods causing spewing

The leakage of water from the building and the backflow of rainwater will short-circuit the circuit of the emergency start button.

8. Misspraying caused by lightning strikes

In the moment of lightning, the internal operation of the machine is disrupted.

It should be noted that some accidental spraying events do not exist independently, but are caused by a combination of multiple reasons.