Furnace top diffusion silencer

Abstract

The utility model provides a furnace top diffusion silencer, and belongs to the technical field of gas emission silencing. The furnace top silencer solves the problem that the noise elimination effect of the furnace top silencer on gas emission is poor. According to the technical scheme, the furnace top diffusion silencer comprises a silencing shell, a connecting piece is fixedly connected to the inner wall of the silencing shell, a plurality of silencing liners are arranged on the connecting piece, the silencing liners are sequentially connected and arranged on the connecting piece in the vertical direction, a positioning piece is further connected to the inner wall of the silencing shell, and the positioning piece is connected with the silencing shell. The positioning piece is located above the connecting piece, and the silencing inner container located on the uppermost portion is connected with the positioning piece. The furnace top silencer has the beneficial effects that high-pressure gas is decompressed, buffered and diffused by the connecting piece, and the contact area between the silencing liner and the gas is increased, so that the silencing effect of the furnace top silencer during gas emission is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas emission silencing technology, and in particular to a furnace top venting silencer. Background Technology

[0002] The furnace top venting silencer is mainly used for effective noise reduction of boiler gas emissions in industries such as power, petroleum, chemical, metallurgy, and textile. It is an important noise reduction device for eliminating dynamic noise from gas emissions.

[0003] In existing technology, a furnace top silencer includes a silencer housing with an opening at the lower end for connection to the furnace top exhaust port. Sound-absorbing cotton is installed on the inner wall of the silencer housing. The dynamic noise generated by the gas entering the silencer housing from the furnace top is absorbed by the sound-absorbing cotton, and the gas is then discharged into the atmosphere. However, the gas discharged from the furnace top is usually high-pressure gas with a concentrated flow direction. It passes through the silencer housing at a relatively high speed, and the sound-absorbing cotton on the inner wall of the silencer housing can only contact a small portion of the gas, resulting in poor noise reduction during gas emission. Summary of the Invention

[0004] The purpose of this invention is to provide a furnace top venting silencer that can improve the silencing effect during gas emission.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A furnace top venting silencer includes a silencer shell, a connector fixedly connected to the inner wall of the silencer shell, a plurality of silencer inner liner provided on the connector, the plurality of silencer inner liner being sequentially connected and vertically arranged on the connector, a positioning member also being connected to the inner wall of the silencer shell, the positioning member being located above the connector, and the uppermost silencer inner liner being connected to the positioning member; the silencer inner liner is made of Q235B+304 material.

[0007] Furthermore, several of the aforementioned sound-absorbing inner liner are configured as T-waves with their openings facing downwards, and a gap is provided between two adjacent sound-absorbing inner liners; the T-wave sound-absorbing inner liner has the effects of small volume, large sound absorption area, and noise being absorbed through circulation within the inner liner, resulting in a noise reduction effect greater than that of traditional mattress-type inner liner.

[0008] Furthermore, the connector is designed in an arc shape, with its arc-shaped sidewall facing downwards and its opening facing upwards. The silencing liner is connected to the inner wall of the connector. Gas entering the silencing housing collides with the connector and disperses on its arc-shaped sidewall, further reducing gas pressure.

[0009] Further, the sound attenuation shell comprises an upper sound attenuation body and a lower sound attenuation body, the connecting piece, the positioning piece and the sound attenuation inner container are located in the upper sound attenuation body; and the shell wall of the lower sound attenuation body is filled with lower body sound attenuation cotton.

[0010] Further, the lower end of the lower sound attenuation body is provided with an air inlet, the position of the air inlet of the lower sound attenuation body is provided with a head, and a plurality of air holes are formed in the head.

[0011] Further, the upper end wall of the upper sound attenuation body is provided with an opening, the upper end of the upper sound attenuation body is further provided with a top cap, and the top cap is connected with the port of the upper sound attenuation body through a supporting rod.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The high-pressure gas discharged from the furnace top enters the sound attenuation shell, impacts the connecting piece, the arc-shaped side wall of the connecting piece buffers and diffuses the high-pressure gas, the diffused gas contacts the sound attenuation inner container, the sound attenuation inner container increases the contact area with the gas, absorbs the noise generated by the gas, and thus the sound attenuation effect of the furnace top sound attenuation device on the gas discharge is improved.

[0014] 2. The sound attenuation inner container is provided in a T wave type, so that the sound attenuation inner container has the effects of small volume, large sound absorption area and noise circulation and absorption in the inner container, and the noise reduction effect is greater than that of a traditional mattress type inner container. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0016] Figure 1 It is a partial cross-sectional schematic view of the furnace top diffusion sound attenuation device in the embodiments of the utility model.

[0017] Among them, the sign is: 1, sound attenuation shell;11, upper sound attenuation body;111, connecting piece;112, positioning piece;113, top cap;114, upper body sound attenuation cotton;115, sound attenuation cotton guard plate;12, lower sound attenuation body;121, air inlet;122, head;1221, air hole;123, lower body sound attenuation cotton;3, sound attenuation inner container. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following is used to further specifically describe the utility model by combining with the drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] Referring to Figure 1 The utility model provides a furnace top diffusion silencer, including silencer casing 1, silencer casing 1 includes upper silencer body 11 and lower silencer body 12, and upper silencer body 11 and lower silencer body 12 are connected through flange bolt between, and the lower end of lower silencer body 12 is provided with air inlet, and the air inlet is communicated with the exhaust port of furnace top through flange, and the upper end wall of upper silencer body 11 is opened, and top hat 113 is also set up above upper silencer body 11, and top hat 113 is connected with the port of upper silencer body 11 through support rod, and the number of support rod is two or more than two, and two in this embodiment, and the inner wall of top hat 113 is provided with silencer wool.

[0020] Preferably, the position of lower silencer body 12 at air inlet 121 is provided with head 122, a plurality of air holes 1221 are provided on head 122, and the shell wall of lower silencer body 12 is filled with lower body silencer wool 123; the inner wall of upper silencer body 11 is connected with upper body silencer wool 114, and the side of upper body silencer wool 114 is also connected with silencer wool guard plate 115, and a plurality of through holes are formed in silencer wool guard plate 115.

[0021] Preferably, the inner wall of upper silencer body 11 is fixedly connected with connecting piece 111, connecting piece 111 is provided in the shape of a circular arc, the arc-shaped side wall of connecting piece 111 is arranged downward, the opening of connecting piece 111 is arranged upward, a plurality of silencer inner containers 3 are arranged on the inner wall of connecting piece 111 in sequence and along the vertical direction, the inner wall of upper silencer body 11 is also connected with positioning piece 112, positioning piece 112 is located above connecting piece 111, and the uppermost silencer inner container 3 is connected with positioning piece 112; the combination of connecting piece 111, positioning piece 112 and the plurality of silencer inner containers 3 is provided as three groups in this embodiment and is uniformly distributed along the radial direction of upper silencer body 11.

[0022] Preferably, the silencer inner containers 3 are all provided in the shape of T wave and are arranged downward, and a space is arranged between the adjacent two silencer inner containers 3; the silencer inner containers 3 are made of Q235B+304 material, the silencer inner containers 3 in the shape of T wave have the effects of small volume, large sound absorption area and noise circulation and absorption in the inner container, and the noise reduction effect is greater than that of a traditional mattress type inner container.

[0023] The high-pressure gas discharged from the furnace top enters the head 122 first, enters the lower muffler 12 through a plurality of air holes 1221, the plurality of air holes 1221 produce the effect of pressure reduction and diffusion on the high-pressure gas, the gas is partially absorbed by the lower body sound-absorbing cotton 123 after entering the lower muffler 12, then impacts the connecting piece 111, the arc-shaped side wall of the connecting piece 111 further buffers, diffuses and reduces the pressure of the high-pressure gas, the diffused gas contacts the sound-absorbing inner liner 3, the sound-absorbing inner liner 3 increases the contact area with the gas, absorbs the noise generated by the gas, the diffused gas simultaneously contacts and is absorbed by the upper body sound-absorbing cotton 114 through the through holes in the sound-absorbing cotton guard plate 115, thereby improving the noise reduction effect of the furnace top muffler on the gas discharge; the gas is discharged from the opening at the upper end of the upper muffler 11 and impacts the top hat 113, the sound-absorbing cotton in the top hat 113 performs the last noise reduction on the gas, and then the gas is discharged to the atmosphere.

[0024] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A furnace stack fugitive noise silencer, characterized by Including the sound attenuation shell (1), the connecting piece (111) is fixedly connected on the inner wall of the sound attenuation shell (1), a plurality of sound attenuation inner containers (3) are arranged on the connecting piece (111), the sound attenuation inner containers (3) are sequentially connected and arranged in the vertical direction on the connecting piece (111), the positioning piece (112) is further connected on the inner wall of the sound attenuation shell (1), the positioning piece (112) is located above the connecting piece (111), and the uppermost sound attenuation inner container (3) is connected with the positioning piece (112).

2. The furnace top diffusion silencer according to claim 1, characterized in that The sound attenuation inner containers (3) are all arranged in T wave type, and the openings are arranged downward, and the adjacent two sound attenuation inner containers (3) are arranged with spacing.

3. A furnace top bleeder silencer according to claim 2, characterised in that The connecting piece (111) is arranged in arc shape, the arc-shaped side wall of the connecting piece (111) is arranged downward, the opening of the connecting piece (111) is arranged upward, and the sound attenuation inner container (3) is connected on the inner wall of the connecting piece (111).

4. The furnace top diffusion silencer according to claim 1, characterized in that The sound attenuation shell (1) comprises an upper sound attenuation body (11) and a lower sound attenuation body (12), the connecting piece (111), the positioning piece (112) and the sound attenuation inner container (3) are all located in the upper sound attenuation body (11), and the shell wall of the lower sound attenuation body (12) is filled with lower body sound attenuation cotton (123).

5. A furnace top bleeder silencer according to claim 4, characterised in that The lower end of the lower sound attenuation body (12) is provided with an air inlet, the lower sound attenuation body (12) is provided with a head (122) at the position of the air inlet (121), and a plurality of air holes (1221) are formed in the head (122).

6. The furnace top diffusion silencer according to claim 4, characterized in that The upper end wall of the upper sound attenuation body (11) is opened, the upper end of the upper sound attenuation body (11) is further provided with a top cap (113), and the top cap (113) and the port of the upper sound attenuation body (11) are connected through a supporting rod.

Images