CN217926026U - Silencer of small gasoline mute variable frequency generator set - Google Patents
Silencer of small gasoline mute variable frequency generator set Download PDFInfo
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- CN217926026U CN217926026U CN202222393253.2U CN202222393253U CN217926026U CN 217926026 U CN217926026 U CN 217926026U CN 202222393253 U CN202222393253 U CN 202222393253U CN 217926026 U CN217926026 U CN 217926026U
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Abstract
The utility model discloses a silencer of a small-sized gasoline mute variable frequency generator set, wherein a silencer body is provided with a first expansion chamber, a second expansion chamber, a third expansion chamber and a fourth expansion chamber, tail gas can sequentially pass through the first expansion chamber, the second expansion chamber, the third expansion chamber and the fourth expansion chamber, the four expansion chambers are sequentially arranged along the length direction of the silencer body, the four expansion chambers are sequentially arranged in the first expansion chamber, the third expansion chamber, the second expansion chamber and the fourth expansion chamber, the first expansion chamber is connected with an air inlet pipe, and the fourth expansion chamber is connected with an exhaust pipe; the four expansion chambers are connected through two silencing pipes, so that the flow direction of the tail gas in the silencer body is Z-shaped. Adopt the utility model discloses, distribute the position of each expansion room rationally for after tail gas passes through the intake pipe and gets into the silencer body, will loop through each expansion room, hush pipe in the silencer body, back exhaust tail gas, tail gas are the zigzag at this internal mobile direction of silencer, have increased tail gas flow distance and time in the silencer body, play the effect of abundant amortization.
Description
Technical Field
The utility model relates to a silencer, especially a silencer of small-size petrol silence variable frequency generator set.
Background
In present small-size petrol silence variable frequency generator set silencer, because the limitation of space, hardly play better noise cancelling effect under less volume, there is the noise cancelling effect poor, can't satisfy the problem of generating set's noise elimination demand.
Disclosure of Invention
The utility model aims to provide a: aiming at the problem that the silencer of the generator set has poor silencing effect due to the limitation of size in the prior art, the silencer of the small gasoline silencing variable frequency generator set is high in space utilization rate and good in silencing effect.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a silencer of a small gasoline mute variable frequency generator set is characterized in that a silencer body is provided with a first expansion chamber, a second expansion chamber, a third expansion chamber and a fourth expansion chamber, tail gas can sequentially pass through the first expansion chamber, the second expansion chamber, the third expansion chamber and the fourth expansion chamber, the four expansion chambers are sequentially arranged along the length direction of the silencer body and sequentially comprise the first expansion chamber, the third expansion chamber, the second expansion chamber and the fourth expansion chamber, the first expansion chamber is connected with a gas inlet pipe, and the fourth expansion chamber is connected with a gas outlet pipe; the four expansion chambers are connected through two silencing pipes, so that the flow direction of the tail gas in the silencer body is Z-shaped.
Adopt above-mentioned technical scheme the utility model discloses, through two hush pipes and four expansion chambers, distribute the position of each expansion chamber rationally, make tail gas pass through the intake pipe and get into the silencer body after, will loop through each expansion chamber in the silencer body, hush pipe, back exhaust tail gas, at tail gas amortization in-process, the direction that flows at the silencer body is the zigzag, tail gas flow distance and time in the silencer body have been increased, the space utilization of silencer body is high, can play the effect of abundant amortization.
Furthermore, the silencing pipe is divided into a first silencing pipe which penetrates through the third expansion chamber and is communicated with the first expansion chamber and the second expansion chamber, and a second silencing pipe which penetrates through the second expansion chamber and is communicated with the third expansion chamber and the fourth expansion chamber; a plurality of silencing holes are formed in the circumferential direction of the silencing pipe. The two silencing pipes are respectively connected with different expansion chambers to form a tail gas flow channel; the silencing hole can improve the silencing effect of the silencing pipe and better reduce noise.
Furthermore, a first heat insulation cotton and a first pipe sleeve are sequentially arranged outside the first silencing pipe, the first heat insulation cotton and the first pipe sleeve are arranged in the middle of the first silencing pipe and form a first closed section on the first silencing pipe, and the first closed section is located in the third expansion chamber. The first silencing pipe is a composite silencing pipe, so that the silencing effect is good, and the noise reduction is good; the tail gas can flow out of the silencing hole but cannot flow out of the first closed section, so that the flowing direction of the tail gas is ensured; the first heat insulation cotton has the effects of heat insulation, noise reduction and noise reduction.
Furthermore, a second heat insulation cotton and a second pipe sleeve are sequentially arranged outside the second silencing pipe, the second heat insulation cotton and the second pipe sleeve are both arranged in the middle of the second silencing pipe and form a second closed section on the second silencing pipe, and the second closed section is located in the second expansion chamber. The second silencing pipe is also a composite silencing pipe, so that the silencing effect is good and the noise reduction is good; the tail gas can flow out of the silencing hole but cannot flow out of the second closed section, so that the flowing direction of the tail gas is ensured; the second heat insulation cotton has the effects of heat insulation, noise reduction and noise reduction.
Further, an end cover is arranged at the end part of the silencing pipe. The tail gas is prevented from entering from the end part of the silencing pipe, the tail gas is ensured to enter from the silencing hole of the silencing pipe, and the silencing effect is ensured.
Furthermore, the silencer body is provided with a long strip-shaped shell, one end of the shell is provided with a convex silencing bag, the first expansion chamber, the second expansion chamber and the third expansion chamber are all positioned in the shell, and the fourth expansion chamber is positioned in the silencing bag. The shell is internally provided with a first expansion chamber, a second expansion chamber and a third expansion chamber, one end outside the shell is connected with a silencing bag, and the silencing bag is internally provided with a fourth expansion chamber.
Furthermore, three expansion chambers in the shell are separated by a first partition plate and a second partition plate which are perpendicular to the length direction, a first partition plate is arranged between the first expansion chamber and the third expansion chamber, and third heat insulation cotton is arranged on one side of the first partition plate, which is located in the first expansion chamber. The third heat insulation cotton is arranged in the first expansion chamber, so that the detonation sound doped in the tail gas of the engine can be eliminated.
Furthermore, a second partition plate is arranged between the third expansion chamber and the second expansion chamber, and a plurality of vent holes are formed in the second partition plate. The vent hole facilitates the passage of exhaust gas from the second expansion chamber into the third expansion chamber.
Furthermore, fourth heat insulation cotton is uniformly paved on the inner wall of the shell, and fifth heat insulation cotton is paved on the inner wall of the silencing bag. The fourth heat insulation cotton has the effects of heat insulation, noise reduction and noise reduction.
Furthermore, the two ends of the silencer body in the length direction are provided with support lugs, one side close to the air inlet pipe is a front support lug, and the other side is a rear support lug.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
through two hush pipes and four expansion chambers, distribute the position of each expansion chamber rationally, make tail gas pass through the intake pipe and get into the silencer body after, will loop through each expansion chamber, hush pipe in the silencer body, back exhaust tail gas, at tail gas amortization in-process, the direction of this internal flow of silencer is the zigzag, increased tail gas displacement and time in the silencer body, the space utilization of silencer body is high, can play abundant amortization effect.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows the utility model discloses a silencer of small-size petrol silence variable frequency generator set.
Fig. 2 shows a cross-sectional view of fig. 1.
Wherein the figures include the following reference numerals:
11 a first expansion chamber; 12 a second expansion chamber; 13 a third expansion chamber; 14 a fourth expansion chamber;
21, an air inlet pipe; 22 an exhaust pipe;
31 a first silencer duct; 32 silencing holes; 33 first insulating cotton; 34 a first sleeve; 35 end caps;
41 a second silencer duct; 42 second heat insulation cotton; 43 a second socket;
51 a housing; 52, a silencing bag;
61 a first separator; 62 a second separator plate;
71 third heat insulation cotton; 72 fourth insulating cotton; 73 fifth insulating cotton;
81 a front lug; 82 rear lug.
Detailed Description
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, a muffler of a small gasoline mute variable frequency generator set, the muffler body is provided with a first expansion chamber 11, a second expansion chamber 12, a third expansion chamber 13 and a fourth expansion chamber 14, tail gas of which can pass through sequentially, the four expansion chambers are arranged sequentially along the length direction of the muffler body, the four expansion chambers are arranged sequentially as the first expansion chamber 11, the third expansion chamber 13, the second expansion chamber 12 and the fourth expansion chamber 14, the first expansion chamber 11 is connected with an air inlet pipe 21, and the fourth expansion chamber 14 is connected with an exhaust pipe 22; the four expansion chambers are connected through two silencing pipes, so that the flow direction of the tail gas in the silencer body is Z-shaped.
Adopt above-mentioned technical scheme the utility model discloses, through two hush pipes and four expansion rooms, rationally distribute the position of each expansion room, make tail gas pass through intake pipe 21 and get into the silencer body after, will loop through each expansion room in the silencer body, the hush pipe, back exhaust tail gas, at tail gas amortization in-process, the direction that flows in the silencer body is the zigzag, increased tail gas flow distance and time in the silencer body, the space utilization of silencer body is high, can play the effect of abundant amortization.
Further, the muffler pipe is divided into a first muffler pipe 31 which passes through the third extension chamber 13 and communicates with the first extension chamber 11 and the second extension chamber 12, and a second muffler pipe 41 which passes through the second extension chamber 12 and communicates with the third extension chamber 13 and the fourth extension chamber 14; a plurality of muffling holes 32 are formed in the circumferential direction of the muffling pipe. The two silencing pipes are respectively connected with different expansion chambers to form a tail gas flow channel; the silencing holes 32 can improve the silencing effect of the silencing pipes and better reduce noise.
Further, a first heat insulation cotton 33 and a first pipe sleeve 34 are sequentially arranged outside the first silencing pipe 31, the first heat insulation cotton 33 and the first pipe sleeve 34 are both arranged in the middle of the first silencing pipe 31, a first closed section is formed on the first silencing pipe 31, and the first closed section is located in the third expansion chamber 13. The first silencing pipe 31 is a composite silencing pipe, so that the silencing effect is good, and the noise reduction is good; the tail gas can flow out from the silencing hole 32 but cannot flow out from the first closed section, so that the flowing direction of the tail gas is ensured; the first heat insulation cotton 33 has the effects of heat insulation, noise reduction and noise reduction.
Further, a second heat insulation cotton 42 and a second pipe sleeve 43 are sequentially arranged outside the second silencing pipe 41, the second heat insulation cotton 42 and the second pipe sleeve 43 are both arranged in the middle of the second silencing pipe 41, a second closed section is formed on the second silencing pipe 41, and the second closed section is located in the second expansion chamber 12. The second silencing pipe 41 is also a composite silencing pipe, so that the silencing effect is good, and the noise reduction is good; the tail gas can flow out from the silencing hole 32 but cannot flow out from the second closed section, so that the flowing direction of the tail gas is ensured; the second heat insulation cotton 42 has the effects of heat insulation, noise reduction and noise reduction.
Further, an end cap 35 is provided at an end of the silencer duct. The tail gas is prevented from entering from the end part of the silencing pipe, the tail gas is ensured to enter from the silencing hole 32 of the silencing pipe, and the silencing effect is ensured.
Further, the muffler body is provided with a long-strip shell 51, one end of the shell 51 is provided with a convex silencing bag 52, the first expansion chamber 11, the second expansion chamber 12 and the third expansion chamber 13 are all positioned in the shell 51, and the fourth expansion chamber 14 is positioned in the silencing bag 52. The first expansion chamber 11, the second expansion chamber 12 and the third expansion chamber 13 are arranged in the shell 51, the silencing bag 52 is connected to one end outside the shell 51, and the fourth expansion chamber 14 is arranged in the silencing bag 52.
Furthermore, the three expansion chambers in the housing 51 are partitioned by a first partition plate 61 and a second partition plate 62 which are arranged in the vertical length direction, the first partition plate 61 is arranged between the first expansion chamber 11 and the third expansion chamber 13, and a third heat insulation cotton 71 is arranged on one side of the first partition plate 61 in the first expansion chamber 11. The third heat insulation cotton 71 is arranged in the first expansion chamber 11, so that the detonation sound doped in the engine tail gas can be eliminated.
Further, a second partition plate 62 is provided between the third extension chamber 13 and the second extension chamber 12, and a plurality of vent holes are opened in the second partition plate 62. The vent facilitates the passage of exhaust gases from the second expansion chamber 12 into the third expansion chamber 13.
Furthermore, fourth heat insulation cotton 72 is uniformly laid on the inner wall of the shell 51, and fifth heat insulation cotton 73 is laid on the inner wall of the silencing bag 52. The fourth heat insulation cotton 72 has the effects of heat insulation, noise reduction and noise reduction.
Furthermore, the two ends of the muffler body in the length direction are both provided with a support lug, one side close to the air inlet pipe 21 is a front support lug 81, and the other side is a rear support lug 82.
The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A silencer of a small gasoline mute frequency conversion generator set is characterized in that a silencer body is provided with a first expansion chamber (11), a second expansion chamber (12), a third expansion chamber (13) and a fourth expansion chamber (14), tail gas can sequentially pass through the first expansion chamber, the second expansion chamber, the third expansion chamber and the fourth expansion chamber, the four expansion chambers are sequentially arranged along the length direction of the silencer body, the arrangement sequence is the first expansion chamber (11), the third expansion chamber (13), the second expansion chamber (12) and the fourth expansion chamber (14), the first expansion chamber (11) is connected with an air inlet pipe (21), and the fourth expansion chamber (14) is connected with an exhaust pipe (22); the four expansion chambers are connected through two silencing pipes, so that the flow direction of the tail gas in the silencer body is Z-shaped.
2. The silencer of the small gasoline mute frequency conversion generator set according to the claim 1, characterized in that the silencing pipe is divided into a first silencing pipe (31) which penetrates through the third expansion chamber (13) and is communicated with the first expansion chamber (11) and the second expansion chamber (12), and a second silencing pipe (41) which penetrates through the second expansion chamber (12) and is communicated with the third expansion chamber (13) and the fourth expansion chamber (14); a plurality of silencing holes (32) are formed in the circumferential direction of the silencing pipe.
3. The silencer of the small-sized gasoline mute frequency conversion generator set according to claim 2, wherein a first heat insulation cotton (33) and a first pipe sleeve (34) are sequentially arranged outside the first silencing pipe (31), the first heat insulation cotton (33) and the first pipe sleeve (34) are both arranged in the middle of the first silencing pipe (31), a first closed section is formed on the first silencing pipe (31), and the first closed section is positioned in the third expansion chamber (13).
4. The muffler of the small-sized gasoline mute frequency conversion generator set according to claim 2, wherein a second heat insulation cotton (42) and a second pipe sleeve (43) are sequentially arranged outside the second muffling pipe (41), the second heat insulation cotton (42) and the second pipe sleeve (43) are both arranged in the middle of the second muffling pipe (41) and form a second closed section on the second muffling pipe (41), and the second closed section is located in the second expansion chamber (12).
5. The silencer of the small-sized gasoline mute frequency conversion generator set according to claim 2, wherein the end part of the silencing pipe is provided with an end cover (35).
6. The muffler of a small gasoline mute inverter generator set according to claim 1, wherein the muffler body is provided with an elongated housing (51), one end of the housing (51) is provided with a convex muffler bag (52), the first expansion chamber (11), the second expansion chamber (12) and the third expansion chamber (13) are all positioned in the housing (51), and the fourth expansion chamber (14) is positioned in the muffler bag (52).
7. The silencer of the small-sized gasoline mute frequency conversion generator set according to the claim 6, characterized in that the three expansion chambers in the shell (51) are separated by a first partition board (61) and a second partition board (62) which are arranged in the vertical length direction, a first partition board (61) is arranged between the first expansion chamber (11) and the third expansion chamber (13), and a third heat insulation cotton (71) is arranged on one side of the first partition board (61) in the first expansion chamber (11).
8. The muffler of a small-sized gasoline mute frequency conversion generator set according to claim 7, wherein a second clapboard (62) is arranged between the third expansion chamber (13) and the second expansion chamber (12), and a plurality of vent holes are arranged on the second clapboard (62).
9. The muffler of a small-sized gasoline silence frequency conversion generating set according to claim 6, characterized in that the inner wall of the shell (51) is uniformly paved with fourth heat insulation cotton (72), and the inner wall of the sound attenuation bag (52) is paved with fifth heat insulation cotton (73).
10. The muffler of a small-sized gasoline silence frequency conversion generating set according to claim 1, wherein the muffler body is provided with support lugs at both ends in the length direction, one side close to the air inlet pipe (21) is a front support lug (81), and the other side is a rear support lug (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222393253.2U CN217926026U (en) | 2022-09-06 | 2022-09-06 | Silencer of small gasoline mute variable frequency generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222393253.2U CN217926026U (en) | 2022-09-06 | 2022-09-06 | Silencer of small gasoline mute variable frequency generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217926026U true CN217926026U (en) | 2022-11-29 |
Family
ID=84174195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222393253.2U Active CN217926026U (en) | 2022-09-06 | 2022-09-06 | Silencer of small gasoline mute variable frequency generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217926026U (en) |
-
2022
- 2022-09-06 CN CN202222393253.2U patent/CN217926026U/en active Active
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