Silencing device for outlet of fire-fighting smoke exhaust fan
A technology for a smoke exhaust fan and a muffler device, which is applied to the components of a pumping device for elastic fluid, mechanical equipment, machines/engines, etc., can solve the problems of noise pollution, high noise, and poor muffling effect, etc. To achieve the effect of reducing noise pollution, simple installation process and avoiding separation
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[0027] Embodiment 1, with reference to Figure 1-7 , a fire-fighting smoke exhaust fan outlet muffler device, comprising a smoke exhaust pipe 1 connected to the fire-fighting smoke exhaust fan outlet and a muffler tube 2 sleeved outside the smoke exhaust pipe 1, the muffler tube 2 is divided into two sections by half The circular arc-shaped plates 201 are spliced together, and the two sides of the two arc-shaped plates 201 are provided with connecting rods 7, the connecting rods 7 and the arc-shaped plates 201 are integrally formed, and the connecting rods 7 are provided with bolt holes 701 After the two connecting rods 7 are overlapped, the bolts 8 run through the two connected bolt holes 701, one end of the bolts 8 is screwed with the nut 9, and the inner two ends of the two arc-shaped plates 201 are welded with the arc-shaped plates 201. Vertical arc-shaped splint 6, one side of the arc-shaped splint 6 is offset against the outer wall of the smoke exhaust pipe 1, and seve...
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