Flexible silencer
A muffler, a flexible technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of inconvenient construction, small space, and affecting the quality of the project, and achieve good noise reduction effect, low cost, and convenient installation Effect
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[0031] Example 1:
[0032] A flexible muffler, two ports are interface flanges 11, the inner side of the middle part is provided with an inner muffler hose 1, and the inner muffler hose 1 is densely covered with muffler holes 7, and the outer sleeve of the inner muffler hose 1 is covered with an outer muffler hose 2; The outer muffler hose 2 is densely covered with muffler holes 8. A sound-absorbing cavity 9 is provided between the inner muffler hose 1 and the outer muffler hose 2, and a fixed ring 10 is arranged in the sound-absorbing cavity 9 to ensure that the sound-absorbing cavity 9 remains open when the present invention is implemented in bending. To the effect of silencing. The outside of the sound-absorbing outer hose 2 is provided with an isolating layer plastic film 3. The function of the isolating layer plastic film 3 is to prevent the tiny fibers of the sound-absorbing layer 4 from entering the air duct through the sound-absorbing holes 8 of the sound-absorbing outer h...
Example Embodiment
[0034] Example 2:
[0035] In Example 1, the caliber of the muffler inner hose 1 is a fixed value, while in Example 2, the caliber of the muffler inner hose 1 is variable under the condition that the caliber of the muffler outer tube 2 remains unchanged, that is, : In this embodiment, the caliber of one section of the noise-absorbing inner hose 1 is larger or smaller than the caliber of the inner circular interface 12 of the interface flange 11, but the condition is that it is smaller than the caliber of the noise-absorbing outer hose 2. In this way, a diameter-reducing area can be formed in the gas flow channel of the present invention, and the gas conveying path is changed, causing the noise and vibration to reflect changes in the diameter-reducing area, thereby achieving a better noise reduction effect.
Example Embodiment
[0036] Example 3:
[0037] In the above-mentioned embodiment, the inner sound-silencing hose 1 is arranged inside the outer sound-silencing hose 2 in a single root form. In this embodiment, the sound-silencing inner hose is provided in the composite hose 5 in the form of a sound-silencing inner hose bundle 13.
[0038] Such as Figure 4-Figure 7 As shown, the interface flange 14 involved in this embodiment has a plurality of interfaces 15 connected to the ports of the muffler inner hose bundle 13; the muffler inner hose bundle 13 is spirally arranged inside the composite hose 5, such as Figure 6 Shown; between the muffler inner hose bundle 13 and the composite hose 5 are sequentially provided with an isolation layer plastic film 3, a sound-absorbing layer 4; each muffler inner hose in the muffler inner hose bundle 13 and the interface flange 14 The upper interface 15 is fixed by a clamp 16 when connecting, and the composite hose 5 is connected with the outer circle of the interfac...
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