Muffler and muffling device including the same
View Patent ↗Provided are: a muffler that can suitably obtain an attenuation effect of a sound wave; and a muffling device including the same. The muffler is installed on a wall surface of a pipe conduit where a gas flows. The muffler includes: a front surface exposed to an inner surface of the pipe conduit; a bottom surface facing the front surface; and a side surface disposed between the front surface and the bottom surface and covering a space between the front surface and the bottom surface. The front surface is formed with a plurality of through-holes, and the number of through-holes arrayed in a gas flow direction is one or two, and the number thereof arrayed in a direction orthogonal to the gas flow direction is 10 or more.
1. A muffling device comprising:
a plurality of mufflers installed on a wall surface of a pipe conduit in which a gas flows; and
a holding section housing the plurality of mufflers and fixed to the wall surface,
wherein the plurality of mufflers respectively include:
a front surface exposed to an inner surface of the pipe conduit;
a bottom surface facing the front surface;
a side surface disposed between the front surface and the bottom surface, and configured to cover a space between the front surface and the bottom surface; and
a plurality of through-holes formed on the front surface, the number of through-holes arrayed in a flow direction of the gas being one or two, and the number of the through-holes arrayed in a direction orthogonal to the flow direction of the gas being 10 or more,
wherein the two through-holes arrayed in the flow direction are disposed to align in the flow direction.
2. The muffling device according to claim 1 , wherein the number of the through-holes arrayed in the direction orthogonal to the flow direction of the gas is 20 or less on the front surface.
3. The muffling device according to claim 1 , wherein the side surface is a member integrally formed with the front surface.
4. The muffling device according to claim 1 , further comprising an adjustment mechanism configured to move the bottom surface relative to the front surface and adjust volume of a space between the front surface and the bottom surface.
5. The muffling device according to claim 1 , wherein the holding section is formed with a plurality of recessed portions to house the mufflers in a direction parallel to flow of the gas.
6. The muffling device according to claim 2 , wherein the side surface is a member integrally formed with the front surface.
7. The muffling device according to claim 2 , further comprising an adjustment mechanism configured to move the bottom surface relative to the front surface and adjust volume of a space between the front surface and the bottom surface.
8. The muffling device according to claim 3 , further comprising an adjustment mechanism configured to move the bottom surface relative to the front surface and adjust volume of a space between the front surface and the bottom surface.
9. The muffling device according to claim 2 , wherein the holding section is formed with a plurality of recessed portions to house the mufflers in a direction parallel to flow of the gas.
10. The muffling device according to claim 3 , wherein the holding section is formed with a plurality of recessed portions to house the mufflers in a direction parallel to flow of the gas.
11. The muffling device according to claim 4 , wherein the holding section is formed with a plurality of recessed portions to house the mufflers in a direction parallel to flow of the gas.
12. The muffling device according to claim 2 , further comprising an adjustment mechanism configured to move the bottom surface relative to the front surface and adjust volume of a space between the front surface and the bottom surface.
13. The muffling device according to claim 3 , further comprising an adjustment mechanism configured to move the bottom surface relative to the front surface and adjust volume of a space between the front surface and the bottom surface.