Multi-stage combined type silencer
The design of the multi-stage composite silencer solved the problems of blast furnace pressure rise and blockage in rainy weather, achieving effective noise reduction and safe operation, and reducing production costs.
Patent Information
- Application Number
- CN202423313423.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing silencers are prone to causing pressure increases when used in blast furnaces, and are easily clogged in rainy weather or when not in operation, affecting the silencing effect and safety.
The design incorporates a multi-stage composite silencer, including primary, secondary, and tertiary silencers. It reduces noise through silencing holes and sound-absorbing filler structures, and is equipped with drainage pipes and an adjustable rain cover to prevent pressure buildup and blockage.
It effectively reduces gas noise to the qualified standard, prevents blast furnace pressure rise, avoids rainwater or impurities clogging the sound-absorbing filler, and reduces production costs.
Smart Images
Figure CN223815641U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of muffler, specifically relates to multistage composite muffler. BACKGROUND
[0002] With the development of science and technology and modern industry, noise pollution has become a worldwide problem, noise has great influence and harm on people's hearing, sleep, physiology, psychology and surrounding environment, and also accelerates the aging of buildings and mechanical structures, and influences the precision and service life of instruments and apparatuses, in view of the above, noise control has become an important topic for governments and scientific and technological workers to study, and one of the main solutions is to use a muffler.
[0003] The muffler refers to the airflow pipeline with noise propagation, and can use the pipeline with sound absorption lining and elbow or use the noise reduction device such as the sound impedance discontinuous pipe with sudden change of cross section to make the noise in the pipeline attenuate or reflect back, the former is called resistive muffler, and the latter is called resistive muffler, and there is also a resistive muffler, when the blast furnace is used, a large amount of hot steam and noise are generated, the steam outlet pipeline is connected with the muffler, a large amount of noise can be reduced, in the existing boiler muffler, most people only pay attention to the noise reduction effect of the muffler, so that the pressure in the blast furnace is increased, and it is easy to cause danger, on the other hand, since the muffler is directly connected with the air and does not operate, and when it is raining, rain directly falls into the muffler, the sound absorption filler is blocked, the noise reduction effect is reduced, and the pressure of the noise generating part is increased, the multistage composite muffler is developed to replace the prior art. Utility model content
[0004] The utility model aims at providing multistage composite muffler to solve the technical problem that the existing equipment causes the pressure of the boiler to increase.
[0005] The technical scheme is realized by the following technical scheme: the multistage composite muffler is characterized in that it comprises a first sound-absorbing body, a second sound-absorbing body and a third sound-absorbing body, the first sound-absorbing body is provided with a first sound-absorbing hole, the wall of the first sound-absorbing body extends outward to connect a ring, the second sound-absorbing body is sleeved on the first sound-absorbing body and fixedly connected with the ring, the second sound-absorbing body is provided with a second sound-absorbing hole, the third sound-absorbing body comprises an outer shell, sound-absorbing filler and a punched plate, the sound-absorbing filler is filled between the outer shell and the punched plate, the lower part of the outer shell is fixedly connected with the ring, the upper part of the outer shell is provided with a heat dissipation net, the upper part of the second sound-absorbing body is connected with a baffle, the baffle is fixedly connected with the punched plate, a group of sound resistance sheet assemblies are arranged on the upper part of the baffle, when in use, the first sound-absorbing body is first connected with a component generating noise, gas enters the first sound-absorbing body from the component generating noise, enters the cavity of the second sound-absorbing body through the first sound-absorbing hole of the first sound-absorbing body, is then discharged from the second sound-absorbing hole under the continuous impact of the subsequent gas, enters the cavity of the third sound-absorbing body, is then discharged through the gap of the sound-absorbing filler on the upper part of the baffle under the continuous impact of the subsequent gas, and is then discharged from the heat dissipation net after the sound resistance sheet assemblies, at this time, the noise of the discharged gas has been reduced to the qualified standard.
[0006] Further, a hydrophobic pipe is arranged between the second sound-absorbing body and the third sound-absorbing body, and the hydrophobic pipe penetrates the ring.
[0007] Further, a rain cover is connected to the upper part of the third sound-absorbing body, and the rain cover is supported and the height thereof is adjusted by a plurality of link sets.
[0008] Further, the link set comprises a first link and a second link which swing on a first connecting pin, and a third link and a fourth link which swing on a second connecting pin, the first connecting pin is fixedly installed on the rain cover, the second connecting pin is fixedly installed on the third sound-absorbing body, the outer end of the first link is connected with the outer end of the third link through a third connecting pin, the outer end of the second link is connected with the outer end of the fourth link through a fourth connecting pin, a plurality of locking holes are arranged on the third link or the fourth link at equal intervals, one end of a locking rod is detachably fixed on the third sound-absorbing body, the other end of the locking rod is provided with a protrusion which is inserted into the locking hole.
[0009] Compared with the prior art, the utility model has the advantages that: through the cooperation of the first sound -attenuating body, the second sound -attenuating body, the third sound -attenuating body and the sound -resisting sheet assembly, the noise gas does not make resistance when passing through the first sound -attenuating body and the second sound -attenuating body, so that the gas passes without resistance, prevents the dangerous pressure rise in the noise generating component, the gas discharged by the second sound -attenuating body enters the sound -absorbing filler, and is discharged through the small gap in the sound -absorbing filler on the baffle, and is reduced in noise by the sound -resisting sheet, so that the discharged gas noise reaches the qualified standard, the technical problem of the existing equipment leading to the blast furnace pressure rise is solved, and on the other hand, the connecting rod set is matched with the rain cover, so that rain or impurities do not fall into the third sound -attenuating body and block the sound -absorbing filler in rainy days and non -running state, since the whole structure is more reasonable, thereby the production cost is lower, and the utility model is suitable for overall promotion and application. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the utility model multistage composite sound -attenuating device sectional view;
[0011] Figure 2 It is the utility model's Figure 1 The local enlarged view of A in the middle;
[0012] Figure 3 It is the utility model connecting rod set structure diagram.
[0013] In the drawing: 1, first sound -attenuating body;2, first sound -attenuating hole;3, connecting ring;4, second sound -attenuating body;5, second sound -attenuating hole;6, third sound -attenuating body;7, shell;8, sound -absorbing filler;9, punched plate;10, heat sink;11, baffle;12, sound -resisting sheet assembly;13, drain pipe;14, rain cover;15, first connecting pin;16, first connecting rod;17, second connecting rod;18, second connecting pin;19, third connecting rod;20, fourth connecting rod;21, third connecting pin;22, fourth connecting pin;23, locking hole;24, locking rod;25, protrusion. DETAILED DESCRIPTION
[0014] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0015] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the position relationship based on the position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0016] Embodiment 1
[0017] In one of the technical solutions of the utility model, as shown in the drawings: Figures 1-2 The multistage composite muffler is characterized by comprising a first sound-absorbing body 1, a second sound-absorbing body 4 and a third sound-absorbing body 6, a first sound-absorbing hole 2 is formed in the first sound-absorbing body 1, a connecting ring 3 is connected to the wall of the first sound-absorbing body 1, the second sound-absorbing body 4 is sleeved on the first sound-absorbing body 1 and is fixedly connected with the connecting ring 3, a second sound-absorbing hole 5 is formed in the second sound-absorbing body 4, the third sound-absorbing body 6 comprises an outer shell 7, sound-absorbing filler 8 and a punched plate 9, the sound-absorbing filler 8 is filled between the outer shell 7 and the punched plate 9, the lower part of the outer shell 7 is fixedly connected with the connecting ring 3, a heat dissipation net 10 is arranged on the upper part of the outer shell 7, a baffle 11 is connected to the upper part of the second sound-absorbing body 4, the baffle 11 is fixedly connected with the punched plate 9, and a group of sound-absorbing sheet assemblies 12 are arranged on the upper part of the baffle 11.
[0018] A drain pipe 13 is arranged between the second sound-absorbing body 4 and the third sound-absorbing body 6, and the drain pipe 13 penetrates through the connecting ring 3.
[0019] The use method of the utility model is as follows: when used, first, the first sound-absorbing body 1 is connected with a component generating noise, gas enters the first sound-absorbing body 1 from the component generating noise, enters the cavity of the second sound-absorbing body 4 through the first sound-absorbing hole 2 of the first sound-absorbing body 1, is then discharged from the second sound-absorbing hole 5 under the continuous impact of subsequent gas, enters the cavity of the third sound-absorbing body 6, is then discharged through the gap of the sound-absorbing filler 8 on the upper part of the baffle 12 under the continuous impact of subsequent gas, and is then discharged from the heat dissipation net 10 after the sound-absorbing sheet assembly 12, at this time, the noise of the discharged gas has been reduced to the qualified standard.
[0020] Embodiment 2
[0021] In another embodiment of the utility model, as shown in the drawings: Figures 1-3The multi-stage composite muffler is characterized in that a first sound-absorbing hole 2 is formed in a first sound-absorbing body 1, a connecting ring 3 is extended outward from the wall of the first sound-absorbing body 1, a second sound-absorbing body 4 is sleeved on the first sound-absorbing body 1 and fixedly connected with the connecting ring 3, a second sound-absorbing hole 5 is formed in the second sound-absorbing body 4, the third sound-absorbing body 6 comprises an outer shell 7, sound-absorbing filler 8 and a punched plate 9, the sound-absorbing filler 8 is filled between the outer shell 7 and the punched plate 9, the lower part of the outer shell 7 is fixedly connected with the connecting ring 3, a heat dissipation net 10 is installed on the upper part of the outer shell 7, a baffle 11 is connected to the upper part of the second sound-absorbing body 4, the baffle 11 is fixedly connected with the punched plate 9, a group of sound resistance sheet assemblies 12 are arranged on the upper part of the baffle 11, a drain pipe 13 is arranged between the second sound-absorbing body 4 and the third sound-absorbing body 6, the drain pipe 13 penetrates through the connecting ring 3, a rain cover 14 is connected to the upper part of the third sound-absorbing body 6, and the rain cover 14 is supported and the height thereof is adjusted by a plurality of connecting rod groups.
[0022] The connecting rod group comprises a first connecting pin 15, a first connecting rod 16 and a second connecting rod 17 which are installed on the first connecting pin 15 and swing, and a third connecting pin 18, a third connecting rod 19 and a fourth connecting rod 20 which are installed on the third connecting pin 18 and swing, the first connecting pin 15 is fixedly installed on the rain cover 14, the third connecting pin 18 is fixedly installed on the third sound-absorbing body 6, the outer end of the first connecting rod 16 is connected with the outer end of the third connecting rod 19 through a third connecting pin 21, the outer end of the second connecting rod 17 is connected with the outer end of the fourth connecting rod 20 through a fourth connecting pin 22, a plurality of locking holes 23 are formed in the third connecting rod 19 or the fourth connecting rod 20 at equal intervals, one end of a locking rod 24 is detachably fixed on the third sound-absorbing body 6, and the other end of the locking rod 24 is provided with a protrusion 25 which is inserted into the locking hole 23.
[0023] By adopting the above technical scheme, one embodiment of the utility model is that the rain cover 14 is attached to the upper part of the third sound-absorbing body 6 in a non-running state, so that impurities are prevented from falling into and blocking the sound-absorbing filler.
[0024] When running and in rainy days, the rain cover 14 is pulled upward by a worker to gradually move away from the third sound-absorbing body 6, in this process, the rain cover 14 is lifted to change the angle between the first connecting rod 16 and the third connecting rod 19 and the angle between the second connecting rod 16 and the fourth connecting rod 20 from small to large, when the height is appropriate, the protrusion 25 of the locking rod 24 is inserted into the locking hole 23, the other end of the locking rod 24 can be fixed on the third sound-absorbing body 6 through a bolt, and the fixing is completed.
[0025] After that, the gas from the generating part enters the first stage silencer 1, enters the chamber of the second stage silencer 4 through the first silencing hole 2 of the first stage silencer 1, and then is discharged from the second silencing hole 5 under the continuous impact of the subsequent gas, enters the chamber of the third stage silencer 6, and then enters the sound-absorbing filler 8 under the continuous impact of the subsequent gas, and then is discharged through the gap of the sound-absorbing filler 8 on the upper part of the baffle 12, and is discharged from the heat dissipation net 10 after passing through the sound resistance sheet assembly 12, at this time, the noise of the discharged gas has been reduced to the qualified standard.
[0026] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements can be made, and these improvements should also be considered as the protection scope of the present application.
Claims
1. A multi-stage composite silencer, characterized in that, The device includes a primary silencer (1), a secondary silencer (4), and a tertiary silencer (6). The primary silencer (1) has a first silencing hole (2) and a connecting ring (3) extending outward from the wall of the primary silencer (1). The secondary silencer (4) is fitted onto the primary silencer (1) and fixedly connected to the connecting ring (3). The secondary silencer (4) has a second silencing hole (5). The tertiary silencer (6) includes an outer shell (7), sound-absorbing filler (8), and a perforated plate (9). The outer shell (7) and the perforated plate (9) are filled with sound-absorbing filler (8). The lower part of the outer shell (7) is fixedly connected to the connecting ring (3). A heat dissipation mesh (10) is installed on the upper part of the outer shell (7). A baffle (11) is connected to the upper part of the secondary silencer (4). The baffle (11) is fixedly connected to the perforated plate (9). A set of sound-absorbing sheet assemblies (12) is provided on the upper part of the baffle (11).
2. The multi-stage composite silencer according to claim 1, characterized in that: A drainage pipe (13) is provided between the secondary silencer (4) and the tertiary silencer (6), and the drainage pipe (13) passes through the connecting ring (3).
3. The multi-stage composite silencer according to claim 1, characterized in that: The upper part of the three-stage sound-absorbing body (6) is connected to a rain cover (14).
4. The multi-stage composite silencer according to claim 3, characterized in that: The rain cover (14) is supported by multiple sets of linkages and its height can be adjusted.
5. The multi-stage composite silencer according to claim 4, characterized in that: The linkage assembly includes a first link (16) and a second link (17) that swing on a first connecting pin (15), and a third link (19) and a fourth link (20) that swing on a second connecting pin (18). The first connecting pin (15) is fixedly installed on the rain cover (14), and the second connecting pin (18) is fixedly installed on the three-stage muffler (6). The outer end of the first link (16) is connected to the outer end of the third link (19) through the third connecting pin (21), and the outer end of the second link (17) is connected to the outer end of the fourth link (20) through the fourth connecting pin (22). Locking holes (23) are opened at equal intervals on the third link (19) or the fourth link (20). One end of the locking rod (24) is detachably fixed to the three-stage muffler (6), and the other end of the locking rod (24) has a protrusion (25) on its surface. The protrusion (25) is inserted into the locking hole (23).