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24
2023
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05
Types and principles of high-pressure water mist fire extinguishing devices
Source:
Umara Technology
1. Types of high-pressure water mist fire extinguishing devices
1. High pressure water mist open fire extinguishing device
The high-pressure water mist fire extinguishing device (open type) is mainly composed of high-pressure pump group, water tank, pump group control cabinet, pressure stabilizing pump, filter device, open type partition control valve, open type water mist nozzle and other components and water supply pipes, which can Automatically and manually activated and spray fine water mist for fire extinguishing or fire control.
2. High pressure water mist closed fire extinguishing device
The high-pressure water mist fire extinguishing device (closed type) is mainly composed of a high-pressure pump group, a closed type water mist nozzle, a partition control valve, a system filter device, a water tank, and a water supply network.
2. Principle of high pressure water mist fire extinguishing device
In the quasi-working state, a certain pressure (between 0.8MPa and 1.2MPa) is maintained in the pipe network between the outlet of the high-pressure pump group and the zone control valve. When the pipe network pressure is lower than 0.8MPa, the regulator pump starts, and when it reaches 1.2MPa, the regulator pump stops. When the pressure of the stabilizing pump runs for more than 10s and the pressure still does not reach 0.8MPa, the high-pressure main pump starts and the stabilizing pump stops running at the same time.
Key words:
Straight wire drawing machine/water tank wire drawing machine/inverted wire drawing machine/annealing furnace/winding unit/rewinding machine
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