CN212637869U - Noise elimination surrounding well - Google Patents
Noise elimination surrounding well Download PDFInfo
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- CN212637869U CN212637869U CN202021140162.2U CN202021140162U CN212637869U CN 212637869 U CN212637869 U CN 212637869U CN 202021140162 U CN202021140162 U CN 202021140162U CN 212637869 U CN212637869 U CN 212637869U
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Abstract
The utility model relates to a noise elimination surrounding well, which comprises a shell and a water inlet pipe, wherein the shell is of an L-shaped hollow structure, a first rib plate and a second rib plate are arranged in the L-shaped hollow structure close to the left end, a third rib plate is arranged in the L-shaped hollow structure close to the right end, the first rib plate, the second rib plate and the third rib plate are parallel to the left end plane of the shell and are fixedly connected with the inner wall of the shell, the water inlet pipe passes through the second rib plate and the third rib plate, and is fixedly connected with the second rib plate and the third rib plate, the water inlet pipe is of an L-shaped structure, the surface of the water inlet pipe is provided with a plurality of water pipe silencing holes which are arranged linearly, the water inlet pipe is provided with a supporting plate, the lower surface of the tail part of the shell is provided with a plurality of tail part silencing holes, the upper surface of the shell is provided with a cup-shaped connecting pipe, and the cup-shaped connecting pipe is located between the first rib plate and the second rib plate. The utility model discloses noise elimination effect is good, simple structure, convenient operation.
Description
Technical Field
The utility model relates to a submarine device field of making specifically is a noise elimination surrounding well.
Background
As is known, the submarine stealth technology refers to the technology developed and applied by the naval of various countries to make the submarine not easy to find by the local. The submarine detection method mainly comprises the steps of detecting the change of a sound field of the submarine, reducing noise and eliminating noise which are the most important links of submarine stealth technology, wherein according to measurement and calculation, the detection distance of own passive sonar is doubled and the detection distance of enemy passive sonar is halved when the noise of the submarine is reduced by 20 decibels, and meanwhile, the combat effect of the acoustic simulation interference device of the submarine is improved by about 15 times, and the importance of noise reduction and elimination is seen. When the submarine sails at high speed or low speed, one of the main noise sources of the running noise of the water pump in the submarine causes great noise due to high-pressure water flow formed by the high-speed running of the water pump, and the stealth effect of the submarine is influenced.
At present, a special noise elimination device is used for reference, for example, a new noise elimination, winding prevention and speed increasing device for a Chinese submarine propeller is disclosed in patent CN201510818296.2, but the device has the following defects: 1) a large amount of sound absorption materials need to be filled, and excessive noise elimination layers are arranged; 2) the device is straight and long, is not an ideal silencing structure and has poor sound absorption effect. Therefore, a new muffler device is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a noise elimination surrounding well has solved and has filled a large amount of sound absorbing material, the structure is unsatisfactory, the sound absorption effect is poor technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a noise elimination surrounding well, includes casing and inlet tube, casing and inlet tube are L type structure, its characterized in that: the water inlet pipe is characterized in that a first rib plate and a second rib plate are arranged in the cavity of the shell close to the left end, a third rib plate is arranged in the cavity of the shell close to the right end, the first rib plate, the second rib plate and the third rib plate are parallel to the left end plane of the shell and fixedly connected with the inner wall of the shell, a plurality of rib plate silencing holes in linear arrangement are formed in the first rib plate, and the water inlet pipe penetrates through the second rib plate and the third rib plate
The water pipe silencer comprises a shell, a water inlet pipe, a third rib plate, a second rib plate and a third rib plate, wherein the water inlet pipe is fixedly connected with the second rib plate and the third rib plate, a plurality of linear water pipe silencing holes are formed in the surface of the water inlet pipe, a supporting plate is arranged on the water inlet pipe, the supporting plate is arranged between the second rib plate and the third rib plate and fixedly connected with the inner wall of the shell, a plurality of tail silencing holes are formed in the lower surface of the tail of the shell, a cup-shaped connecting pipe is arranged on the upper surface.
As a preferred technical scheme: the upper end of the first rib plate is fixedly connected with the first rib plate, the upper end of the second rib plate is fixedly connected with the second rib plate, the upper end of the third rib plate is fixedly connected with the third rib plate, the third rib plate is fixedly connected with a fourth rib plate, the fourth rib plate is fixedly connected with the inner wall of the shell, one end of the water inlet pipe, which faces the tail portion of the shell, penetrates through the fourth rib plate and is fixedly connected with the fourth rib plate, the surface of the fourth rib plate, which faces the tail portion of the shell, is fixedly connected with the fourth rib plate, and the first rib plate, the second rib plate, the third rib plate and the fourth rib plate are all parallel to the left end face of the shell and are fixedly connected with the upper inner wall of the.
As a preferred technical scheme: the upper and lower surfaces of the shell are both arc surface structures.
As a preferred technical scheme: the tail silencing holes are provided with two hole patterns with different radiuses and are uniformly arranged in a linear mode.
As a preferred technical scheme: and a fifth rib plate is fixedly connected between the fourth rib plate and the inner wall of the lower part of the shell, and a through hole is formed in the fifth rib plate.
As a preferred technical scheme: the water inlet pipe is composed of a first straight pipe section, a bent pipe section, a second straight pipe section and a conical pipe section, the first straight pipe section is coaxially and fixedly connected with one end of the bent pipe section, the other end of the bent pipe section is coaxially and fixedly connected with one end of the second straight pipe section, and the other end of the second straight pipe section is fixedly connected with one end of the conical pipe section.
As a preferred technical scheme: the circumferential surfaces of the first straight pipe section and the second straight pipe section are provided with a plurality of water pipe silencing holes which are uniformly arranged in a linear mode.
As a preferred technical scheme: the first rib plate, the second rib plate, the third rib plate and the fourth rib plate are all arc-shaped rib plates with T-shaped sections.
The utility model has the advantages that: a muffling enclosure, compared to conventional structures:
1) the body structure is utilized for noise elimination, and no noise elimination material is required to be filled;
2) the shell adopts an L-shaped structure, so that the noise elimination effect is better;
3) the circumference of the water inlet pipe is provided with water pipe silencing holes, a porous diffusion silencing principle is adopted to carry out silencing on high-pressure water flow, the tail part of the shell is provided with a tail silencing hole, and the silencing effect of the silencing enclosure well is better due to the multiple silencing structures;
4) the structure is suitable for the working environment of seawater, and has firm structure and strong pressure resistance.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a right side view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a schematic view of the top view C of the present invention;
fig. 5 is a top view B-B cross-sectional view of the present invention;
FIG. 6 is a structural view of the water inlet pipe of the present invention;
FIG. 7 is a schematic view of a first straight tube section according to the present invention;
fig. 8 is a schematic view of a second straight tube section according to the present invention.
In the drawings 1-8, 1 is a shell, 1-1 is a tail lower surface, 2 is a water inlet pipe, 2-1 is a first straight pipe section, 2-2 is a bent pipe section, 2-3 is a second straight pipe section, 2-4 is a conical pipe section, 3 is a first rib plate, 4 is a second rib plate, 5 is a third rib plate, 6 is a first rib plate, 7 is a second rib plate, 8 is a third rib plate, 9 is a fourth rib plate, 10 is a fourth rib plate, 11 is a support plate, 12 is a cup-shaped connecting pipe, 13 is a fifth rib plate, 14 is a tail silencing hole, 14-1 is a tail silencing small hole, 14-2 is a tail silencing large hole, 15 is a water pipe silencing hole, 16 is a silencing hole, and 17 is a through hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings;
referring to fig. 1-8, a silencing surrounding well comprises a shell 1 and a water inlet pipe 2, wherein the shell 1 and the water inlet pipe 2 are both of an L-shaped structure, a first rib plate 6 and a second rib plate 7 are arranged in a cavity of the shell 1 near the left end, a third rib plate 8 is arranged in the cavity of the shell 1 near the right end, the first rib plate 6, the second rib plate 7 and the third rib plate 8 are parallel to the left end plane of the shell 1 and are fixedly connected with the inner wall of the shell 1, the water inlet pipe 2 penetrates through the second rib plate 7 and the third rib plate 8 and is fixedly connected with the second rib plate 7 and the third rib plate 8, a plurality of rib plate silencing holes 16 which are linearly arranged are arranged on the first rib plate 6, a plurality of water pipe silencing holes 15 which are linearly arranged are arranged on the surface of the water inlet pipe 2, a support plate 11 is arranged on the water inlet pipe 2, the support plate 11 is arranged between the second rib plate 6 and the third rib plate 8 and is fixedly connected, in the embodiment, the shell 1 is of an L-shaped hollow structure, and the silencing effect of the L-shaped hollow structure is better than that of a straight long type under the same length; the first rib plate 6 and the second rib plate 7 form a cavity, the cup-shaped connecting pipe 12 faces a pump port of the water pump, and high-pressure water flow caused by high-speed operation of the water pump firstly enters the cavity formed by the first rib plate 6 and the second rib plate 7 through the cup-shaped connecting pipe 12 to play a role in buffering, so that pressure reduction and noise reduction are carried out on the high-pressure water flow; high-pressure water flows out of the lower surface 1-1 at the tail part of the shell 1 through the water inlet pipe 2, the water inlet pipe 2 is of an L-shaped structure, the L-shaped structure enables the propagation direction of sound waves to be changed, and the sound waves are reflected, interfered and the like in the water inlet pipe 2 to achieve the purpose of silencing; the surface of the water inlet pipe 2 is provided with a plurality of water pipe silencing holes 15 which are linearly arranged, preferably, the number of the water pipe silencing holes 15 is 532, 632 or 732, a thin film phenomenon can occur at the positions of the water pipe silencing holes 15 by utilizing a porous diffusion silencing principle, when high-pressure water flow enters the water inlet pipe 2, the high-pressure water flow is sprayed out from the positions of the water pipe silencing holes 15, the thin film vibration can be caused, sound energy is consumed, and the effects of silencing and reducing noise are achieved; when high-pressure water flows to the lower surface 1-1 of the tail part of the shell 1 from the water inlet pipe 2, a plurality of tail part silencing holes 14 are arranged, preferably, the number of the tail part silencing holes is 80, 100 or 120, the structure can disperse sound waves caused by the high-pressure water flow, so that the sound power of each frequency doubling band is reduced, and the effects of silencing and reducing noise are achieved.
As shown in figures 1-8, the upper and lower surfaces of the shell 1 are cambered structures, the cambered structures are matched with the submarine model, and the cambered structures can reduce the resistance of seawater to the acoustic trunk in the submarine navigation process.
As shown in fig. 1-8, the tail muffling holes 14 are composed of two hole types with different radii, preferably, the tail muffling holes 14 are uniformly divided into 4 groups, each group is provided with two tail muffling small holes 14-1 with smaller radii, the number of the tail muffling large holes 14-2 with larger radii is 72, 92 or 112, and the tail muffling large holes are uniformly arranged in a linear manner, and the two hole types with different radii are arranged in the structure, so that the sound resistance can be changed, and the sound waves with different frequencies can be muffled.
As shown in fig. 1-8, a fifth rib plate 13 is fixedly connected between the fourth rib plate 10 and the inner wall of the lower portion of the housing 1, a through hole 17 is formed in the fifth rib plate 13, when high-pressure water flow or air flow is sprayed out from the conical pipe section 2-4 of the water inlet pipe 2, the high-pressure water flow is divided by the through hole 17 of the fifth rib plate 13, sound waves generated after the high-pressure water flow is divided and depressurized are reflected in the housing to further eliminate the noise, and the noise elimination effect is better.
As shown in fig. 1-8, the water inlet pipe 2 is composed of a first straight pipe section 2-1, a bent pipe section 2-2, a second straight pipe section 2-3 and a conical pipe section 2-4, the first straight pipe section 2-1 is coaxially and fixedly connected with one end of the bent pipe section 2-2, one end of the second straight pipe section 2-3 is coaxially and fixedly connected with the other end of the bent pipe section 2-2, and the other end of the second straight pipe section 2-3 is fixedly connected with one end of the conical pipe section 2-4.
As shown in fig. 1-8, the circumferential surfaces of the first straight pipe section 2-1 and the second straight pipe section 2-3 are provided with a plurality of muffling holes 15, further, the first straight pipe section 2-1 near the left end and the middle section of the second straight pipe section 2-3 are provided with water pipe muffling holes 15, three water pipe muffling holes 15 distributed in a regular triangle form a group, each group is uniformly arranged, a single row of uniformly arranged water pipe muffling holes 15 are arranged at the right end of the first straight pipe section 2-1 near the right end, and the spectral performance of the muffler can be controlled by changing the arrangement mode of the water pipe muffling holes 15, so that the muffler can obtain a good muffling effect in a required frequency range; and set up water pipe bloop 15 and utilized the noise elimination principle of porous diffusion, the film phenomenon can appear in the aperture department, and when high-pressure rivers got into the inlet tube, spout from water pipe bloop 15, can arouse the film vibration, consumed the acoustic energy, reach the effect of eliminating the noise and making an uproar, then got into casing 1 inside and casing 1 and produced resonance phenomenon, further consumed the acoustic energy, reach the effect of eliminating the noise.
As shown in fig. 1 to 8, the first rib plate 3, the second rib plate 4, the third rib plate 5 and the fourth rib plate 10 are T-shaped arc plates, and the T-shaped arc plates can obviously reinforce the noise elimination surrounding well.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (8)
1. The utility model provides a noise elimination is enclosed well, includes casing (1) and inlet tube (2), casing (1) and inlet tube (2) are L type structure, its characterized in that: a first rib plate (6) and a second rib plate (7) are arranged in the cavity of the shell (1) close to the left end, a third rib plate (8) is arranged in the cavity of the shell (1) close to the right end, the first rib plate (6), the second rib plate (7) and the third rib plate (8) are parallel to the left end plane of the shell (1) and are fixedly connected with the inner wall of the shell (1), a plurality of rib plate silencing holes (16) which are linearly arranged are arranged on the first rib plate (6), the water inlet pipe (2) penetrates through the second rib plate (7) and the third rib plate (8) and is fixedly connected with the second rib plate (7) and the third rib plate (8), a plurality of water pipe silencing holes (15) which are linearly arranged are arranged on the surface of the water inlet pipe (2), a support plate (11) is arranged on the water inlet pipe (2), and the support plate (11) is arranged between the second rib plate (6) and the third rib plate (8) and is fixedly connected with the inner wall of the shell (1, the tail part lower surface (1-1) of the shell (1) is provided with a plurality of tail part silencing holes (14), the upper surface of the shell (1) is provided with a cup-shaped connecting pipe (12), and the cup-shaped connecting pipe (12) is located between the first rib plate (6) and the second rib plate (7).
2. The muffling surround well of claim 1, wherein: the upper end of the first rib plate (6) is fixedly connected with the first rib plate (3), the upper end of the second rib plate (7) is fixedly connected with the second rib plate (4), the upper end of the third rib plate (8) is fixedly connected with a third rib plate (5), a fourth rib plate (9) is fixedly connected on the third rib plate (5), the fourth rib plate (9) is fixedly connected with the inner wall of the shell (1), one end of the water inlet pipe (2) facing the tail part of the shell (1) passes through the fourth rib plate (9) and is fixedly connected with the fourth rib plate (9), a fourth rib plate (10) is fixedly connected on the surface of the fourth rib plate (9) facing the tail part of the shell (1), the first rib plate (3), the second rib plate (4), the third rib plate (5) and the fourth rib plate (10) are parallel to the left end face of the shell (1) and are fixedly connected with the upper inner wall of the shell (1).
3. The muffling surround well of claim 1, wherein: the upper surface and the lower surface of the shell (1) are both arc surface structures.
4. The muffling surround well of claim 1, wherein: the tail silencing holes (14) are provided with two hole patterns with different radiuses and are uniformly arranged in a linear mode.
5. A sound-damping surround well according to claim 2, wherein: a fifth rib plate (13) is fixedly connected between the fourth rib plate (10) and the inner wall of the lower part of the shell (1), and a through hole (17) is formed in the fifth rib plate (13).
6. The muffling surround well of claim 1, wherein: the water inlet pipe (2) is composed of a first straight pipe section (2-1), a bent pipe section (2-2), a second straight pipe section (2-3) and a conical pipe section (2-4), the first straight pipe section (2-1) is coaxially and fixedly connected with one end of the bent pipe section (2-2), the other end of the bent pipe section (2-2) is coaxially and fixedly connected with one end of the second straight pipe section (2-3), and the other end of the second straight pipe section (2-3) is fixedly connected with one end of the conical pipe section (2-4).
7. The muffling surround well of claim 6, wherein: the circumferential surfaces of the first straight pipe section (2-1) and the second straight pipe section (2-3) are provided with a plurality of water pipe silencing holes (15) which are uniformly arranged in a linear mode.
8. A sound-damping surround well according to claim 2, wherein: the first rib plate (3), the second rib plate (4), the third rib plate (5) and the fourth rib plate (10) are all arc rib plates with T-shaped sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140162.2U CN212637869U (en) | 2020-06-18 | 2020-06-18 | Noise elimination surrounding well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140162.2U CN212637869U (en) | 2020-06-18 | 2020-06-18 | Noise elimination surrounding well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212637869U true CN212637869U (en) | 2021-03-02 |
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ID=74771318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021140162.2U Active CN212637869U (en) | 2020-06-18 | 2020-06-18 | Noise elimination surrounding well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212637869U (en) |
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2020
- 2020-06-18 CN CN202021140162.2U patent/CN212637869U/en active Active
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