Silencing device for carbon fiber precursor steam pipe

Abstract

The utility model discloses a carbon fiber precursor steam pipe silencer, and belongs to the technical field of carbon fiber equipment. Comprising a main shell, an open opening is formed in the side face of the main shell, a shell cover is arranged at the opening of the side face of the main shell, a steam exhaust pipe is arranged at the top of the main shell, a water drainage pipe is arranged at the bottom of the main shell, and a silencing pipe is transversely inserted in the left-right direction of the main shell; according to the utility model, the silencing pipe is arranged, the pipe orifice of the feed port is larger than the pipe orifice of the discharge port, and meanwhile, the silencing holes are formed in the surface of the silencing pipe, so that energy generated by vacuum gas and protofilament bundles entering at a high speed can be dispersed, and a primary silencing effect is realized; and a bottom partition plate is arranged at the bottom of the silencing pipe, and silencing cotton is arranged between the top partition plate and the bottom partition plate, so that secondary silencing is carried out on steam rushed out through the silencing holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber equipment, and in particular relates to a carbon fiber precursor steam pipe silencing device. Background Art

[0002] In the production of high-quality, high-performance carbon fiber precursor, the quality of the precursor determines the quality of the carbon fiber. In the steam-pipe process of existing tubular drafting boxes, due to their inherent structural limitations, steam entering the drafting tube and being ejected from both ends generates a high noise level exceeding 100dB, seriously affecting the hearing of operators involved in this process. Although certain noise reduction measures have been implemented in existing technologies, the noise level still remains high.

[0003] In view of the above problems, a device with better noise reduction effect is needed to reduce the noise generated and benefit the health of on-site personnel. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a carbon fiber precursor steam pipe silencer.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: a carbon fiber precursor steam pipe silencer, comprising a main shell, an open opening is formed on the side of the main shell, a shell cover is provided at the side opening of the main shell, an exhaust pipe is provided on the top of the main shell, a drain pipe is provided on the bottom of the main shell, a silencer pipe is provided in the horizontal direction of the left and right sides of the main shell, both ends of the silencer pipe extend out of the outside of the main shell respectively, a feed port is formed at one end of the silencer pipe, and a There is a discharge port, and a plurality of through grooves are provided on the surface of the silencer pipe inside the main shell, and a plurality of silencer holes are provided in each through groove. A top partition and a bottom partition are respectively arranged in parallel above and below the main shell, and the top partition is located above the silencer pipe, and the bottom partition is located below the silencer pipe. A top cavity is formed between the top partition and the upper part of the inner cavity of the main shell, and the exhaust pipe is communicated with the top cavity, and a bottom cavity is formed between the bottom partition and the lower part of the inner cavity of the main shell, and the bottom cavity is communicated with the drain pipe.

[0006] Preferably, the pipe opening of the feed port is larger than the pipe opening of the discharge port.

[0007] Preferably, sound-absorbing cotton is provided on the mutually facing sides of the top partition and the bottom partition.

[0008] Preferably, a top channel is formed between the main shells on one side of the top partition, and the top channel connects the top cavity and the inner cavity of the main shell; a bottom channel is formed between the main shells on one side of the bottom partition, and the bottom channel connects the bottom cavity and the inner cavity of the main shell.

[0009] The beneficial effects of the present invention are as follows: by arranging a silencer pipe, the orifice of the feed port thereof is larger than the orifice of the discharge port, and at the same time, a plurality of silencer holes are opened on the surface of the silencer pipe, which can disperse the energy generated by the high-speed entering true qi and the original silk bundle, thereby achieving a preliminary silencer effect; then, by arranging a top baffle at the top of the silencer pipe and a bottom baffle at the bottom of the silencer pipe, and arranging silencer cotton between the top baffle and the bottom baffle, the steam rushing out through the silencer hole is silenced for the second time, and after slowing down its overall impact force, it enters the top cavity and the bottom cavity respectively through the top channel and the bottom channel; by forming side cavities on both sides of the main cavity of the main shell, a resonant silencer structure can be formed, thereby achieving a third silencer, greatly reducing the overall noise generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0011] Figure 2 This is a schematic diagram of a three-dimensional structure of the utility model without a shell cover installed;

[0012] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0013] In the figure: 1. Main shell; 11. Top partition; 12. Top cavity; 13. Top channel; 14. Bottom partition; 15. Bottom cavity; 16. Bottom channel; 17. Shell cover; 18. Silencer cotton; 2. Exhaust pipe; 3. Drain pipe; 4. Silencer pipe; 41. Feed port; 42. Discharge port; 43. Through groove; 44. Silencer hole. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0015] Example: A carbon fiber precursor steam pipe silencer, such as Figure 1-Figure 3As shown, it includes a main shell 1, an open opening is formed on the side of the main shell 1, a shell cover 17 is provided at the side opening of the main shell 1, an exhaust pipe 2 is provided on the top of the main shell 1, a drain pipe 3 is provided on the bottom of the main shell 1, and a silencer pipe 4 is horizontally inserted in the left and right directions of the main shell 1, both ends of the silencer pipe 4 extend out of the outside of the main shell 1 respectively, a feed port 41 is formed at one end of the silencer pipe 4, and a discharge port 42 is formed at the other end of the silencer pipe 4, the pipe opening of the feed port 41 is larger than the pipe opening of the discharge port 42, a plurality of through grooves 43 are provided on the surface of the silencer pipe 4 inside the main shell 1, and a plurality of silencer holes 44 are provided in each through groove 43, by arranging the silencer pipe 4, the pipe opening of the feed port 41 is larger than the pipe opening of the discharge port 42, and the plurality of silencer holes 44 provided on the surface of the silencer pipe 4 can disperse the energy generated by the high-speed entering true qi and the original silk bundle, thereby achieving a preliminary silencer effect;

[0016] A top baffle 11 and a bottom baffle 14 are provided in parallel with each other in the upper and lower parts of the main shell 1. The top baffle 11 is located above the muffler pipe 4, and the bottom baffle 14 is located below the muffler pipe 4. A top cavity 12 is formed between the top baffle 11 and the upper part of the inner cavity of the main shell 1. The exhaust pipe 2 and the top cavity 12 are communicated with each other. A bottom cavity 15 is formed between the bottom baffle 14 and the lower part of the inner cavity of the main shell 1. The bottom cavity 15 is communicated with the drain pipe 3.

[0017] Then, a top partition 11 is set at the top of the silencer pipe 4, and a bottom partition 14 is set at the bottom of the silencer pipe 4. Silencing cotton 18 is set between the top partition 11 and the bottom partition 14 to perform secondary silencing on the steam rushing out through the silencer hole 44.

[0018] The top partition plate 11 and the bottom partition plate 14 are both provided with sound-absorbing cotton 18 on the sides facing each other. A top channel 13 is formed between the main shell 1 on one side of the top partition plate 11, and the top channel 13 connects the top cavity 12 and the inner cavity of the main shell 1. A bottom channel 16 is formed between the main shell 1 on one side of the bottom partition plate 14, and the bottom channel 16 connects the bottom cavity 15 and the inner cavity of the main shell 1.

[0019] After slowing down its overall impact force, it then enters the top cavity 12 and the bottom cavity 15 through the top channel 13 and the bottom channel 16 respectively. By forming side cavities on both sides of the main cavity of the main shell 1, a resonant silencer structure can be formed, thereby achieving a third silencer and greatly reducing the overall noise generated.

[0020] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A carbon fiber precursor steam pipe silencer, comprising a main housing (1), characterized in that: An open opening is formed on the side of the main shell (1), a shell cover (17) is provided at the side opening of the main shell (1), an exhaust pipe (2) is provided on the top of the main shell (1), a drain pipe (3) is provided on the bottom of the main shell (1), a silencer pipe (4) is provided in a horizontal manner in the left and right directions of the main shell (1), both ends of the silencer pipe (4) extend out of the main shell (1), one end of the silencer pipe (4) is formed with a feed port (41), and the other end of the silencer pipe (4) is formed with a discharge port (42), and a plurality of through grooves (43) are provided on the surface of the silencer pipe (4) inside the main shell (1), each of which is provided with a plurality of through grooves (43). A plurality of silencer holes (44) are provided in each of the through grooves (43), and a top partition (11) and a bottom partition (14) are provided in parallel in the upper and lower parts of the main shell (1). The top partition (11) is located above the silencer pipe (4), and the bottom partition (14) is located below the silencer pipe (4). A top cavity (12) is formed between the top partition (11) and the upper part of the inner cavity of the main shell (1). The exhaust pipe (2) and the top cavity (12) are communicated with each other. A bottom cavity (15) is formed between the bottom partition (14) and the lower part of the inner cavity of the main shell (1), and the bottom cavity (15) is communicated with the drain pipe (3).

2. The carbon fiber precursor steam pipe silencer according to claim 1, characterized in that: The pipe opening of the feed port (41) is larger than the pipe opening of the discharge port (42).

3. The carbon fiber precursor steam pipe silencer according to claim 1, characterized in that: The top partition (11) and the bottom partition (14) are both provided with sound-absorbing cotton (18) on the sides facing each other.

4. The carbon fiber precursor steam pipe silencer according to claim 1, characterized in that: A top channel (13) is formed between the main shell (1) and one side of the top partition (11), and the top channel (13) is connected to the top cavity (12) and the inner cavity of the main shell (1). A bottom channel (16) is formed between the main shell (1) and one side of the bottom partition (14), and the bottom channel (16) is connected to the bottom cavity (15) and the inner cavity of the main shell (1).

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