Distributed point-by-point follow-up spray type temperature-control fire-fighting system with memory alloy spring
A memory alloy spring, fire protection system technology, applied in engine components, valve operation/release devices, valve details, etc., can solve the problems of narrow control field, inability to carry out timely and effective control, debugging, and inconvenient control.
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[0021] Under normal conditions, the memory alloy spring (7) is under pressure, and the magnetic ring assembly (4) is pushed down to drive the magnetic core assembly (5) to move down by means of magnetic force, to block the pressure relief hole (12), and to close the auxiliary valve. At the same time, the magnetic ring assembly (4) drives the connecting cylinder (10) to move down, and produces relative motion with the stationary handle (11), so that the screw (8) presses down on the spring seat (9) Make the memory alloy spring (7) in a compressed state.
[0022] At this time, the inlet water pressure enters the upper part of the main diaphragm piston (18) through the main valve upper pressure hole (21) on the main diaphragm piston (18). , the auxiliary valve body (1) including the temperature control parts and the manual shut-off valve (22) are closed, and the pressure entering through the upper pressure hole (21) of the main valve cannot be discharged, causing the upper part o...
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