Suspended type ultrafine dry powder extinguishing installation

Abstract

The invention relates to a suspended type ultrafine dry powder extinguishing installation. In a suspended state, from top to bottom, the suspended type ultrafine dry powder extinguishing installation comprises a hanging ring, a pressure signal switch, a fire extinguishing agent storage tank, a heat-gathering cover, a spray head provided with a choke plug, a safe pressure relief device, a temperature sensing glass marble or a fusible element, an automatic starting device, and a set screw for fastening the temperature sensing glass marble or the fusible element, wherein the hanging ring is welded together with the fire extinguishing agent storage tank, the inside of the hanging ring is provided with a hole communicated with the fire extinguishing agent storage tank, the pressure signal switch is positioned in the hole, the heat-gathering cover is connected between the fire extinguishing agent storage tank and the spray head, the temperature sensing glass marble or the fusible element and the automatic starting device are positioned in the spray head, the temperature sensing glass marble or the fusible element is positioned in the automatic starting device, the upper part of the temperature sensing glass marble or the fusible element is connected with the choke plug, while the lower part is connected with the set screw, and the set screw is penetrated in the hole below the spray head. The suspended type ultrafine dry powder extinguishing installation has quick response, can sense a fire disaster in the smoldering stage, and need small feeding power.

Description

technical field [0001] The invention relates to a suspended superfine dry powder fire extinguishing device. Background technique [0002] Temperature-sensitive glass bulbs and fusible elements are widely used as starting devices for various fire-fighting equipment in modern fire-fighting technology. The fire extinguishing devices widely used in temperature-sensitive glass balls and fusible components mainly include sprinkler heads, temperature-sensitive deluge valves, suspended heptafluoropropane fire extinguishing devices, and suspended ordinary ABC dry powder fire extinguishing devices, especially in suspended ultra-fine dry powder fire extinguishing devices. . The national standard GB5135.1-2003 specifies the technical requirements and test methods for sprinklers, including the technical requirements and test methods for temperature-sensitive glass bulbs and fusible components. The sprinkler head is generally composed of a nozzle frame, a plug, a temperature-sensitive g...

AI Technical Summary

Problems solved by technology

[0008] 6.13 of GA602-2006 "Dry Powder Fire Extinguishing Device" requires that the fire extinguishing device should be equipped with a pressure relief device. If a pressure relief device interface is added to the storage tank, the structure of the storage tank will be damaged, which is not beautiful, and increases the manufacturing cost and difficulty.

To achieve the purpose of pressure relief when the pressure rises, a safety valve can be used, but the structure will be more complicated and the volume will be large, so a small and practical pressure relief device should be designed to meet the standard requirements

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