CN204204405U - A kind of mute structure - Google Patents
A kind of mute structure Download PDFInfo
- Publication number
- CN204204405U CN204204405U CN201420636133.3U CN201420636133U CN204204405U CN 204204405 U CN204204405 U CN 204204405U CN 201420636133 U CN201420636133 U CN 201420636133U CN 204204405 U CN204204405 U CN 204204405U
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- Prior art keywords
- air outlet
- air
- air inlet
- channel
- door
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- Expired - Lifetime
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- 230000003584 silencer Effects 0.000 claims description 21
- 230000030279 gene silencing Effects 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 208000026062 Tissue disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model discloses a kind of mute structure for genset, comprising: the casing being sheathed on generator external, wherein, this casing comprises: tank wall, and the air inlet be arranged on tank wall and air outlet; This mute structure also comprises: the air intake passage be connected with air inlet; Be arranged at the first sound suppressor group of air intake passage near one end of air inlet; The air-out passage be connected with air outlet; And be arranged at the second sound suppressor group of air-out passage near one end of air outlet.Mute structure of the present utility model, by adopting the structure at the outside sheathed casing of diesel-driven generator, operating personnel and body are isolated, improve the working environment of operating personnel, and the mute structure of this structure can not cause the phenomenon of Room air distribution design disorder or air flow shortcircuit, ensure that the output of the normal power of genset.
Description
Technical Field
The utility model relates to a ventilation design field of making an uproar falls of generating set especially relates to a silence structure, is applied to on the generating set.
Background
The existing generator sets in the market are all bare machines arranged in a machine room, the machine room is provided with a ventilation system, the structure requires that the noise reduction requirement of the machine room is high, and the generator sets are directly contacted, so that the working environment of operators is poor; and the existing noise reduction structure or the structure is complex, the manufacturing cost is very high, or the indoor airflow organization disorder or the airflow short circuit phenomenon is easily caused, and the normal power output of the generator set is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a silence structure has solved current structure of making an uproar of falling and has caused indoor air current tissue disorder or air current short circuit phenomenon, influences generating set's normal power output's problem.
According to the utility model discloses an aspect provides a silence structure for generating set, include: the generator outside is located to the box, cover, and the box includes: the air inlet and the air outlet are arranged on the box wall; the air inlet channel is connected with the air inlet; the first silencer group is arranged at one end of the air inlet channel close to the air inlet; the air outlet channel is connected with the air outlet; and the second silencer group is arranged at one end of the air outlet channel close to the air outlet.
Optionally, the first muffler group and the second muffler group each include a plurality of muffler units, and the muffler units are arranged in a matrix.
Optionally, the box further comprises: an acoustic door comprising: the door frame is fixed on the box wall, the door plate is hinged to one side of the door frame, and the sealing rubber strip is arranged on the door frame.
Optionally, the door frame is of a rectangular tube structure, and the thickness of the rectangular tube is 2.5 mm-3.5 mm.
Optionally, the door plate is made of cold-rolled sheet, and the thickness of the door plate is 1.5 mm-2.0 mm.
Optionally, the sealing rubber strip is of a double hollow tube structure, and the sealing rubber strip is made of ethylene propylene diene monomer.
Optionally, the muting structure further comprises: the first electric rolling shutter door is fixed at one end of the air inlet channel, which is far away from the air inlet; and the second electric rolling shutter door is fixed at one end of the air outlet channel far away from the air outlet.
Optionally, the muting structure further comprises: one end of the smoke exhaust channel is connected with an exhaust port of the generator set, wherein a smoke exhaust port through which the smoke exhaust channel penetrates is further formed in the wall of the box; one end of the connecting part is connected with the air outlet, and the other end of the connecting part is connected with the air outlet channel, wherein the connecting part is provided with a through hole communicated with the other end of the smoke exhaust channel.
The utility model discloses a beneficial effect of embodiment is: a silent structure for a generator set isolates a machine body by sleeving a box body outside the generator set, thereby improving the working environment of operators; the air inlet channel and the air outlet channel are fixed on the box body, the flow direction of air entering and exiting the generator set is limited in the air inlet channel and the air outlet channel, the phenomenon of indoor air flow organization disorder or air flow short circuit is avoided, the normal power output of the generator set is ensured, the first silencer group and the second silencer group are respectively arranged on the air inlet channel and the air outlet channel, the noise caused by the air entering and exiting the mute structure is reduced, the mute structure is simple and easy to implement, and the good noise reduction effect can be ensured.
Drawings
Fig. 1 is a schematic structural view of a muting structure of the present invention;
fig. 2 is a schematic partial structure diagram of a muting structure according to the present invention;
fig. 3 is a schematic view of a partial structure of the muting structure of the present invention;
figure 4 shows a side view of the structure of figure 3.
Wherein in the figure: 1. the box, 2, inlet air channel, 3, first muffler group, 4, air-out passageway, 5, second muffler group, 6, first electric rolling slats door, 7, second electric rolling slats door, 8, exhaust fume channel, 9, connecting portion.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Examples
As shown in fig. 1 to 4, an embodiment of the present invention provides a mute structure for a generator set, wherein the generator set includes a plurality of independent generators, and the mute structure includes: the outside box 1 of generator is located to the cover, and this box 1 includes: the air inlet and the air outlet are arranged on the box wall; this silence structure still includes: an air inlet channel 2 connected with the air inlet; the first muffler group 3 is arranged at one end of the air inlet channel 2 close to the air inlet; an air outlet channel 4 connected with the air outlet; the second muffler group 5 is arranged at one end of the air outlet channel 4 close to the air outlet; wherein,
the box body 1 isolates the generator set, so that the patrol environment of an operator and the working environment of the generator set are independent, and the working environment of the operator is improved;
the air inlet channel 2 and the air outlet channel 4 are directly connected with the box body 1, air directly enters the box body 1 from the air inlet channel 2 and then leaves the box body 1 from the air outlet channel 4, and each generator is provided with the box body 1 which is independent, so that the air flowing through each generator cannot interfere with each other to form the phenomena of disordered airflow organization and short circuit of airflow, and the normal power output of each generator set is ensured;
the first silencer group 3 is fixed at one end of the air inlet channel 2 close to the air inlet, so that the noise formed by air entering the box body 1 is reduced, the superposition of the noise caused by the operation of the generator set is reduced, and the aim of muting is effectively fulfilled;
the second silencer group 5 is fixed at one end, close to the air outlet, of the air outlet channel 4, noise formed by air flowing out of the box body is reduced, and the noise of the whole system is reduced together with the noise of the first silencer group 3.
Alternatively, as shown in fig. 1 to 4, the first muffler group 3 and the second muffler group 5 each include a plurality of muffler units, and the arrangement of the muffler units may be designed differently according to the specific silencing structure, and this embodiment is only illustrated by comparing the preferred matrix arrangement with other arrangements in terms of frequency spectrum characteristics, silencing quantity, flow resistance characteristics and cost,
spectral characteristics: the frequency spectrum characteristic of the matrix type muffler group is more suitable for medium and low frequencies, the frequency below 250Hz can still reach the muffling amount above 35 dB, and under the condition of the same muffling amount, the length of the sheet type muffler group is 3 times that of the matrix type muffler group;
the noise elimination amount: within the silencing length of 2000mm to 4000mm, the matrix silencer group can reach the silencing quantity of 50 decibels to 70 decibels, and the tubulation type can not realize the silencing quantity of more than 50 decibels due to insufficient low frequency, within the equal silencing length, the sheet silencer group can only reach the silencing quantity of 15 decibels to 30 decibels, and the silencing effects of the louver silencer group and the folded plate silencer group are worse;
flow resistance characteristics: in the case of an incoming air flow velocity of 7m/s to 15m/s, the flow resistance loss of the matrix silencer group is about: 137Pa to 650Pa, the silencing length is about 2m, the flow resistance loss of the tubular silencer group is about 115Pa to 500Pa, the flow resistance loss of the sheet silencer group is about 350Pa to 500Pa, and the silencing length is 6 m;
cost: under the condition of the same silencing quantity and flow resistance, the silencing length of the matrix silencer group is shorter than that of the sheet silencer group and the tube type silencer group, so that the silencing structural material is effectively reduced, and the manufacturing cost is greatly reduced;
in summary, in order to balance the frequency characteristics, the muffling amount, the flow resistance characteristics, the cost, and other considerations of the first muffler group 3 and the second muffler group 5, the present embodiment selects a matrix arrangement manner to achieve performance balance in all aspects.
Optionally, in order to reach better noise reduction effect, the utility model discloses a box of silence structure still includes: a sound-proof door, wherein the sound-proof door comprises: the door comprises a door frame fixed on the wall of the box, a door plate hinged on one side of the door frame and a sealing rubber strip arranged on the door frame; the door frame is made into a rectangular tube structure of 100mm x 100mm by adopting a special section which can ensure that the door frame cannot deform after long-term use, and the thickness of the wall of the rectangular tube is 2.5mm to 3.5 mm; the door plate is made of a cold-rolled plate with the thickness of 1.5mm to 2.0mm, and the flatness and the attractiveness of the door plate can be guaranteed by adopting the cold-rolled plate; in order to ensure the elasticity and the sealing performance of the rubber strip, the ethylene propylene diene monomer rubber is used as a manufacturing material of the rubber strip, and in order to eliminate the processing error between the door plate and the door frame, the rubber strip is in a double hollow pipe structure with good sound insulation performance, so that the door frame and the door plate can be fully sealed, and a good sound insulation effect can be ensured. In addition, the hinge joint adopts a stainless steel assembly hinge, so that the door plate cannot be opened due to corrosion, is durable and is not easy to scratch; in order to ensure good sound insulation effect, the sound insulation door is further provided with a door lock, so that the door frame and the door plate are tightly attached, and the sealing and sound insulation effects are enhanced.
Optionally, as shown in fig. 1 to 4, the mute structure of the present invention further includes: the exhaust system comprises a smoke exhaust channel 8 with one end connected with an exhaust port of the generator set and a connecting part 9 with one end connected with an air outlet and the other end connected with an air outlet channel 4, wherein a smoke exhaust port for the smoke exhaust channel 8 to penetrate out is arranged on the wall of the box, and a through hole communicated with the other end of the smoke exhaust channel 8 is arranged on the connecting part 9.
Optionally, as shown in fig. 1, the muting structure further includes: the first electric rolling door 6 fixed at one end of the air inlet channel 2 far away from the air inlet and the second electric rolling door 7 fixed at one end of the air outlet channel 4 far away from the air outlet can be closed when the generator set does not work, so that the whole mute structure is isolated from the outside.
Optionally, as shown in fig. 1, in order to prevent fallen leaves or large particles of dust from entering the silencing structure, the ports of the air inlet channel 2 and the air outlet channel 4, which are communicated with the outside, are both arranged towards the horizontal direction.
The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (8)
1. A muting structure for a generator set, characterized in that the muting structure comprises:
the generator outside is located to the box, the cover, the box includes: the air inlet and the air outlet are arranged on the box wall;
the air inlet channel is connected with the air inlet;
the first muffler group is arranged at one end of the air inlet channel close to the air inlet;
the air outlet channel is connected with the air outlet; and the number of the first and second groups,
and the second silencer group is arranged at one end of the air outlet channel, which is close to the air outlet.
2. The muting structure according to claim 1, characterized in that the first silencer group and the second silencer group each comprise a plurality of silencer units, which are arranged in a matrix.
3. The muting structure according to claim 1, characterized in that the box further comprises:
an acoustic door comprising: the door comprises a door frame fixed on the wall of the box, a door plate hinged on one side of the door frame and a sealing rubber strip arranged on the door frame.
4. The silencing structure of claim 3, wherein the door frame is a rectangular tube structure, and the wall of the rectangular tube has a thickness of 2.5mm to 3.5 mm.
5. The muting structure according to claim 3, characterized in that the door panel is made of cold-rolled sheet, and the thickness of the door panel is 1.5 mm-2.0 mm.
6. The silencing structure of claim 3, wherein the sealing rubber strip is of a double hollow tube structure, and the sealing rubber strip is made of ethylene propylene diene monomer.
7. The muting structure according to claim 1, characterized in that the muting structure further comprises:
the first electric rolling shutter door is fixed at one end of the air inlet channel, which is far away from the air inlet;
and the second electric rolling shutter door is fixed at one end of the air outlet channel, which is far away from the air outlet.
8. The muting structure according to claim 1, characterized in that the muting structure further comprises:
one end of the smoke exhaust channel is connected with an exhaust port of the generator set, wherein a smoke exhaust port through which the smoke exhaust channel penetrates is further formed in the box wall;
and one end of the connecting part is connected with the air outlet, and the other end of the connecting part is connected with the air outlet channel, wherein the connecting part is provided with a through hole communicated with the other end of the smoke exhaust channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636133.3U CN204204405U (en) | 2014-10-29 | 2014-10-29 | A kind of mute structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636133.3U CN204204405U (en) | 2014-10-29 | 2014-10-29 | A kind of mute structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204405U true CN204204405U (en) | 2015-03-11 |
Family
ID=52662339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636133.3U Expired - Lifetime CN204204405U (en) | 2014-10-29 | 2014-10-29 | A kind of mute structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185369A (en) * | 2015-08-19 | 2015-12-23 | 哈尔滨城林科技股份有限公司 | Sound attenuating system for low-noise integrated equipment cabinet used for communication |
-
2014
- 2014-10-29 CN CN201420636133.3U patent/CN204204405U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185369A (en) * | 2015-08-19 | 2015-12-23 | 哈尔滨城林科技股份有限公司 | Sound attenuating system for low-noise integrated equipment cabinet used for communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |