CN113818964A - Diesel generating set silence case - Google Patents

Abstract

The invention relates to a silencing box of a diesel generator set, which comprises a front air exhaust component, a middle component and a rear air exhaust component, wherein the rear air exhaust component is provided with an air inlet; the air inlet is provided with a first shutter assembly, and the rear air inlet component is communicated with the middle component through a second shutter assembly; the middle part comprises an external component and an internal component, the internal component is arranged inside the external component, and the front end and the rear end of the middle part are respectively provided with the external component and the internal component; and the rear air inlet component is provided with a noise prevention box, the air outlet is arranged at the top of the front air exhaust component, and the noise prevention box is arranged at the top of the front air exhaust component. Different from the prior art, the invention systematically solves the problem of noise, and the integral structure of the silencing box of the diesel generating set meets the requirement of noise reduction.

Description

Diesel generating set silence case

Technical Field

The invention relates to the technical field of diesel generating sets, in particular to a silencing box of a diesel generating set.

Background

Nowadays, the modernization degree is increasing day by day, and generating set plays very important effect for guaranteeing the normal operating of business as the reserve power of industrial equipment. With the rapid development of diesel generating sets, the noise requirement on the diesel generating sets is higher and higher. In the prior art, a diesel generator set is arranged in a silent box of the diesel generator set and used for reducing noise of the diesel generator set.

More information about the above solution can also be found in the following documents:

for example, in chinese utility model patent with patent publication No. CN203146114U, a silent box for a generator set is disclosed. The mute case of the generator set comprises a case body; an equipment placing chamber for placing a generator set and two silencing air channels are arranged in the box body; the two silencing air channels are sequentially communicated with the equipment placing chamber, are respectively arranged on two opposite sides of the equipment placing chamber and are communicated with the outside through ventilation openings; at least three rows of sound absorption sheets are sequentially arranged in the sound absorption air duct along the direction of the straight line; a channel for ventilation is reserved between every two adjacent sound absorption sheets in the same row; and two adjacent rows of the sound absorption sheets are arranged in a staggered manner, so that one row of the sound absorption sheets is aligned with a channel formed by the other row of the sound absorption sheets.

In utility model patent that patent publication number is CN2918755Y, a generating set silence case device is disclosed, belongs to generating set noise control field. The device mainly comprises a box body shell (1), an air inlet silencer (3), an internal combustion engine exhaust silencer (4) and an air outlet silencer (7); the whole generator set is arranged in the box body 1, the two air inlet silencers 3 are arranged at the front part of the box body 1, are respectively arranged at two sides of the generator and the control cabinet, are supported by the base, and the upper edge of each air inlet silencer is close to the top of the box body 1; the exhaust muffler 7 can be closely filled at the tail part of the box body 1, the width and height are higher than the width and height of the cross section of the inner wall of the box body, the exhaust muffler 4 of the internal combustion engine is of a cuboid structure and is arranged on a smoke exhaust pipe of a generator set and positioned outside the box body 1. The utility model has the advantages of compact structure makes the box volume as little as possible, reduce cost. The heat dissipation performance is good, and the noise can be effectively reduced, so that the noise in a short distance range is reduced to be less than 75 dB.

In the process of implementing the invention, the inventor finds that the following problems exist in the prior art:

in the prior art, the sound insulation structure of the silent box of the diesel generator set lacks systematicness, and generally only insulates sound of an air inlet and an air outlet, so that the integral structure cannot meet the requirement of noise reduction.

Disclosure of Invention

Therefore, the diesel generator set mute box needs to be provided, and the technical problem that the whole structure cannot meet the requirement of noise reduction due to the fact that the sound insulation structure of the diesel generator set mute box in the prior art lacks systematicness and only generally insulates the sound of the air inlet and the air outlet is solved.

In order to achieve the above object, the inventor provides a silent box of a diesel generator set, which comprises a front exhaust component, a middle component and a rear exhaust component, wherein the front exhaust component, the middle component and the rear exhaust component are sequentially arranged, the middle component is provided with an accommodating space for accommodating the diesel generator set, the rear exhaust component is provided with an air inlet, the rear exhaust component is communicated with the middle component, the middle component is communicated with the front exhaust component, and the front exhaust component is provided with an air outlet;

the air inlet is provided with a first shutter assembly, the rear air inlet component is communicated with the middle component through a second shutter assembly, and the first shutter assembly and the second shutter assembly are used for reducing noise;

the middle part comprises an external component and an internal component, the internal component is arranged inside the external component, a gap is reserved between the external component and the internal component, and the front end and the rear end of the middle part are respectively provided with the external component and the internal component;

and the rear air inlet component is provided with a noise prevention box, the air outlet is arranged at the top of the front air outlet component, the noise prevention box is arranged at the top of the front air outlet component and covers the air outlet, and the noise prevention box is used for reducing noise.

Different from the prior art, in the technical scheme, the first louver assembly is arranged on the air inlet, the rear air inlet component is communicated with the middle component through the second louver assembly, the first louver assembly and the second louver assembly are used for noise reduction, the second louver assembly is used for noise reduction once, and then the first louver assembly is used for noise reduction for a second time, so that double-layer noise reduction of the air inlet is realized; the middle part comprises an external component and an internal component, the internal component is arranged inside the external component, a gap is reserved between the external component and the internal component, and the front end and the rear end of the middle part are respectively provided with the external component and the internal component, so that double-layer sound insulation of the middle part is realized; the rear air inlet component is provided with a noise prevention box, the air outlet is arranged at the top of the front air outlet component, the noise prevention box is arranged at the top of the front air outlet component and covers the air outlet, and the noise prevention box is used for reducing noise and realizing double-layer noise reduction of the air outlet; therefore, the rear air inlet component, the middle component and the front air exhaust component are double-layer noise reduction, the problem of noise is solved systematically, and the overall structure of the silent box of the diesel generating set meets the requirement of noise reduction.

As an embodiment of the invention, the external component is connected with the internal component through a hanging beam, and the silent box of the diesel generator set further comprises a hanging plate, and the hanging plate is fixed with the hanging beam through a bolt.

So, the external component can be connected with the internal component through the hanging beam, realizes being connected between external component and the internal component for external component and internal component become a whole, conveniently hoist diesel generating set silence case through the hoisting plate.

As an embodiment of the present invention, the two internal components are connected to each other by a connection beam, the hanging beam is connected to the connection beam by a sound insulation board, and a sound insulation board is disposed between the hanging beam and the hanging board.

So, two inside subassemblies pass through tie-beam interconnect, make the intermediate part form a complete whole, in order to solve between hanging beam and the tie-beam, the syllable-dividing problem between hanging beam and the hoist and mount board, all be provided with the acoustic celotex board between hanging beam and tie-beam, between hanging beam and hoist and mount board, prevent that tie-beam, hanging beam from reducing syllable-dividing effect.

As an embodiment of the present invention, the outer assembly includes two outer maintenance doors, the two outer maintenance doors are arranged in an array, and the inner assembly includes two inner maintenance doors, and the two inner maintenance doors are oppositely arranged behind the two outer maintenance doors.

So, through two outside maintenance doors and two inside maintenance doors, make things convenient for outside maintenance personal to get into in the diesel generating set silence case, because diesel generating set silence case inner space is limited, open a door more and can maintain more aspect of, the maintenance space is bigger, the position of operation is different.

As an embodiment of the present invention, the exterior service door includes an outer door panel, an inner door panel, a first soundproof layer, and a second soundproof layer, the outer door panel, the first soundproof layer, the second soundproof layer, and the inner door panel are sequentially disposed from outside to inside, and a gap is left between the first soundproof layer and the second soundproof layer;

the outer door plate is provided with a first accommodating space for accommodating the first sound-insulating layer, the inner door plate is provided with a second accommodating space for accommodating the second sound-insulating layer, and reinforcing ribs are arranged on the outer door plate.

So, through first puigging and second puigging separation noise, through the door plant again, come the separation noise to spread through different structures, reach the effect of noise reduction, cushion through the space between first puigging and the second puigging, be provided with the strengthening rib on the outer door plant of rethread, increased the intensity of outer door plant, improved the life of outer door plant, simple structure.

In one embodiment of the present invention, the reinforcing rib is provided at a middle portion of the outer door panel, the first soundproof layer includes an upper soundproof layer and a lower soundproof layer, the upper soundproof layer is provided above the reinforcing rib, and the lower soundproof layer is provided below the reinforcing rib.

So, divide into puigging and puigging down with first puigging through the strengthening rib, the strengthening rib monoblock sets up at the middle part of outer door plant, and the strengthening rib forms a strengthening frame, can effectively improve the intensity of strengthening rib, has further increased the intensity of outer door plant, has improved the life of outer door plant.

As an embodiment of the present invention, the outer door panel includes a door frame, the door frame is a hollow structure, and the first soundproof layer is disposed in the door frame;

the inner door plate comprises a cover body and an extension part arranged on the cover body, the second sound insulation layer is arranged in the cover body, and the inner door plate is fixed on the door frame through the extension part.

So, first puigging is inlayed in the door frame of outer door plant, and the second puigging is inlayed in the cover of interior door plant, and interior door plant passes the extension through the bolt, fixes interior door plant on outer door plant, improves the stability that interior door plant and outer door plant are fixed.

As an implementation manner of the invention, the silent box of the diesel generator set further comprises a silencer, the silencer comprises a silencer body, an air inlet pipeline and an air outlet pipeline, the silencer body is used for silencing the tail gas of the diesel generator set, the silencer body is provided with an air inlet and an air outlet, the air inlet is communicated with the air inlet pipeline, and the air outlet is communicated with the air outlet pipeline;

wherein, the silencer body includes interior casing and shell body, interior casing sets up the inside of shell body, the admission line give vent to anger the pipeline respectively with interior casing is linked together, be provided with the accommodation space that is used for placing sound absorbing material in the interior casing, interior casing with be provided with the accommodation space that is used for placing sound absorbing material between the shell body.

Therefore, the tail gas of the diesel generator set enters the inner shell, is subjected to first silencing through the sound-absorbing material in the inner shell, and is subjected to second silencing through the sound-absorbing material between the inner shell and the outer shell, so that the silencer meets the noise reduction requirement.

As an embodiment of the present invention, the air intake duct includes a first vertical duct and a first horizontal duct, one end of the first vertical duct communicates with the air intake, and the other end of the first vertical duct communicates with the first horizontal duct through an elbow;

the first vertical pipe is fixedly connected with the air inlet through an anchor ear, and the first transverse pipe is fixedly connected with the first vertical pipe through an anchor ear.

So, through the cooperation of first violently pipe with first standpipe, can change the direction of tail gas, can rationally set up the position of silencer body.

As an embodiment of the present invention, the air intake duct further includes a corrugated tube and a second vertical tube, the first horizontal tube is communicated with the second vertical tube through the corrugated tube, and the corrugated tube is a flexible connecting tube.

So, be soft connecting pipe through the bellows, mainly play soft connection, the effect of shock attenuation adjustment, conveniently adjust the position of second standpipe, make things convenient for the installation of silencer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

Fig. 1 is an exploded view of a silent box of a diesel generator set according to an embodiment of the present application;

fig. 2 is a vertical sectional view of a silencing box of a diesel generator set according to an embodiment of the application;

FIG. 3 is an exploded view of another angle of a silence chamber of a diesel generator set according to an embodiment of the present application;

FIG. 4 is a horizontal cross-sectional view of a silencing box of a diesel generator set according to an embodiment of the application;

FIG. 5 is an exploded view of an exterior service door according to one embodiment of the present application;

FIG. 6 is a front view of an exterior service door according to one embodiment of the present application;

FIG. 7 is a cross-sectional view of an exterior service door according to one embodiment of the present application;

FIG. 8 is a perspective view of a muffler according to one embodiment of the present application;

FIG. 9 is a cross-sectional view of a muffler according to one embodiment of the present application.

Description of reference numerals:

1. a front exhaust component, a rear exhaust component,

2. the intermediate part is a part of the intermediate part,

21. the external components are arranged on the outer side of the casing,

211. the exterior of the door is maintained,

22. the internal components of the device are arranged in a sealed manner,

221. the interior of the door is maintained,

23. the lifting beam is arranged on the lifting beam,

24. the connecting beam is connected with the beam body,

25. a sound-insulating board,

26. the plate is hung on the hanging plate, and the hanging plate is hung on the hanging plate,

27. the gap is formed between the upper surface of the base plate and the lower surface of the base plate,

3. the rear air inlet component is arranged on the rear air inlet component,

31. an air inlet buffer plate is arranged on the air inlet,

4. a first louver assembly is disposed in the first louver assembly,

41. a muffler body, a muffler cover and a muffler cover,

411. an inner shell body is arranged in the inner shell body,

412. the outer shell is provided with a plurality of grooves,

42. an air inlet pipeline is arranged on the air inlet pipeline,

421. a first vertical pipe and a second vertical pipe,

422. a first transverse pipe is arranged on the first horizontal pipe,

423. a bent pipe is arranged at the upper part of the shell,

424. the holding hoop is arranged on the top of the frame,

425. a corrugated tube is arranged on the upper surface of the corrugated tube,

426. a second vertical pipe is arranged on the first vertical pipe,

43. an air outlet pipeline is arranged on the air inlet pipe,

44. a mounting seat is arranged on the base plate,

5. a second louver assembly for the second louver assembly,

6. the anti-noise box is arranged on the upper portion of the box,

71. an outer door panel is provided with a plurality of outer door panels,

711. a door frame is arranged on the door frame,

72. an inner door panel is arranged on the inner side of the door,

721. the cover body is provided with a cover body,

722. the extension part is provided with a plurality of extension parts,

73. a first sound-insulating layer is arranged on the first side of the base,

731. an upper sound-insulating layer is arranged on the upper surface of the shell,

732. the lower sound-insulating layer is arranged on the lower side of the lower sound-insulating layer,

74. a second sound-insulating layer is provided,

75. the reinforcing ribs are arranged on the outer wall of the shell,

76. a door lock is provided.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

In the prior art, the sound insulation structure of the silent box of the diesel generator set lacks systematicness, and generally only insulates sound of an air inlet and an air outlet, so that the integral structure cannot meet the requirement of noise reduction.

Referring to fig. 1 to 4, the embodiment relates to a silencing box for a diesel generator set, which includes a front exhaust component 1, a middle component 2 and a rear exhaust component 3, wherein the front exhaust component 1, the middle component 2 and the rear exhaust component 3 are sequentially arranged, the middle component 2 is provided with an accommodating space for accommodating the diesel generator set, the rear exhaust component 3 is provided with an air inlet, the rear exhaust component 3 is communicated with the middle component 2, the middle component 2 is communicated with the front exhaust component 1, and the front exhaust component 1 is provided with an air outlet; the air inlet is provided with a first shutter assembly 4, the rear air inlet component 3 is communicated with the middle component 2 through a second shutter assembly 5, and the first shutter assembly 4 and the second shutter assembly 5 are used for reducing noise; the middle part 2 comprises an external component 21 and an internal component 22, the internal component 22 is arranged inside the external component 21, a gap 27 is reserved between the external component 21 and the internal component 22, and the external component 21 and the internal component 22 are arranged at the front end and the rear end of the middle part 2; and the rear air exhaust component 3 is provided with a noise prevention box 6, an air outlet is arranged at the top of the front air exhaust component 1, the noise prevention box 6 is arranged at the top of the front air exhaust component 1 and covers the air outlet, and the noise prevention box 6 is used for reducing noise.

In this embodiment, the first louver assembly 4 includes a first louver body and a first sponge layer, and the first sponge layer is disposed on the first louver body; the second louver assembly 5 includes a second louver body and a second sponge layer, the second sponge layer being disposed on the second louver body. So, diesel generating set's noise can make an uproar once falls in second shutter subassembly 5, and the rethread first shutter subassembly 4 falls the second time of making an uproar, inhales the sound through the second sponge layer, and the rethread first sponge layer is inhaled the sound, realizes making an uproar twice.

In this embodiment, can fall the noise through noise prevention box 6 and fall the air exit, be provided with sound absorbing material in the part 1 of airing exhaust in the front, for example the sponge, rethread noise prevention box 6 falls the secondary and makes an uproar, and noise prevention box 6's principle also is provided with sound absorbing material at noise prevention box 6, inhales the sound.

In this embodiment, the rear air intake component 3 further includes an air intake buffer plate 31, and the air intake buffer plate 31 is disposed between the first louver assembly 4 and the second louver assembly 5. So, can cushion the air inlet through air intake buffer board 31, also can cushion the noise that produces, be provided with sound absorbing material at air intake buffer board 31, for example the sponge also can inhale the sound, reaches the effect of noise reduction.

In this embodiment, the top of diesel generating set silence case also is double-deck sound-proof structure.

In the embodiment, the first louver assembly 4 is arranged on the air inlet, the rear air inlet component 3 is communicated with the middle component 2 through the second louver assembly 5, the first louver assembly 4 and the second louver assembly 5 are used for reducing noise, the second louver assembly 5 is used for reducing noise once, and then the first louver assembly 4 is used for reducing noise for a second time, so that double-layer noise reduction of the air inlet is realized; the middle part 2 comprises an external component 21 and an internal component 22, the internal component 22 is arranged inside the external component 21, a gap 27 is reserved between the external component 21 and the internal component 22, and the external component 21 and the internal component 22 are arranged at the front end and the rear end of the middle part 2 respectively, so that double-layer sound insulation of the middle part 2 is realized; the rear air exhaust component 3 is provided with a noise prevention box 6, an air outlet is arranged at the top of the front air exhaust component 1, the noise prevention box 6 is arranged at the top of the front air exhaust component 1 and covers the air outlet, and the noise prevention box 6 is used for reducing noise to realize double-layer noise reduction of the air outlet; therefore, the rear air inlet component 3, the middle component 2 and the front air outlet component 1 are in double-layer noise reduction, the problem of noise is solved systematically, and the overall structure of the silent box of the diesel generating set meets the requirement of noise reduction.

In some embodiments, the outer assembly 21 is connected to the inner assembly 22 through a hanging beam 23, and the silencing box of the diesel generator set further includes a hanging plate 26, and the hanging plate 26 is fixed to the hanging beam 23 through a bolt. So, outside subassembly 21 can be connected with inside subassembly 22 through hanging beam 23, realizes being connected between outside subassembly 21 and the inside subassembly 22 for outside subassembly 21 becomes a whole with inside subassembly 22, conveniently hoists diesel generating set silence case through hoisting plate 26.

In some embodiments, the two internal components 22 are interconnected by a connecting beam 24, the hanging beam 23 is connected to the connecting beam 24 by an acoustic panel 25, and the acoustic panel 25 is disposed between the hanging beam 23 and the hanging panel 26. Thus, the two internal components 22 are connected with each other through the connecting beam 24, so that the intermediate component 2 forms a complete whole, and in order to solve the sound insulation problem between the hanging beam 23 and the connecting beam 24 and between the hanging beam 23 and the hoisting plate 26, the sound insulation plates 25 are arranged between the hanging beam 23 and the connecting beam 24 and between the hanging beam 23 and the hoisting plate 26, so that the connecting beam 24 and the hanging beam 23 are prevented from reducing the sound insulation effect.

In some embodiments, the outer assembly 21 includes two outer service doors 211, the two outer service doors 211 are arranged in an array, and the inner assembly 22 includes two inner service doors 221, the two inner service doors 221 are disposed opposite the rear of the two outer service doors 211. So, through two outside maintenance doors 211 and two inside maintenance doors 221, make things convenient for outside maintenance personal to get into in the diesel generating set silence case, because the inner space of diesel generating set silence case is limited, open a door more and can maintain more aspect, the maintenance space is bigger, the position of operation is different.

As shown in fig. 5 to 7, in some embodiments, the external service door 211 includes an outer door panel 71, an inner door panel 72, a first soundproof layer 73, and a second soundproof layer 74, the outer door panel 71, the first soundproof layer 73, the second soundproof layer 74, and the inner door panel 72 are sequentially disposed from outside to inside, and a gap is left between the first soundproof layer 73 and the second soundproof layer 74; the outer door panel 71 is provided with a first accommodating space for accommodating the first soundproof layer 73, the inner door panel 72 is provided with a second accommodating space for accommodating the second soundproof layer 74, and the outer door panel 71 is provided with reinforcing ribs 75. So, through first puigging 73 and the 74 separation noise of second puigging, through the door plant again, come the separation noise to spread through different structures, reach the effect of noise reduction, cushion through the space between first puigging 73 and the second puigging 74, be provided with strengthening rib 75 on the outer door plant 71 of rethread, increased outer door plant 71's intensity, improved outer door plant 71's life, simple structure.

In this embodiment, the inner maintenance door 221 may have a double soundproof layer structure, similar to the outer maintenance door 211.

In this embodiment, the external maintenance door 211 and the internal maintenance door 221 are hinged, and the sound generated by the diesel generator set needs to sequentially pass through the inner door panel 72, the second soundproof layer 74, the gap, the first soundproof layer 73 and the outer door panel 71, so that the noise is basically blocked.

In some embodiments, the ribs 75 are disposed in the middle of the outer door panel 71, the first acoustical layer 73 includes an upper acoustical layer 731 and a lower acoustical layer 732, the upper acoustical layer 731 is disposed above the ribs 75, and the lower acoustical layer 732 is disposed below the ribs 75. So, divide into puigging 731 and puigging 732 down with first puigging 73 through strengthening rib 75, the monoblock of strengthening rib 75 sets up in the middle part of outer door plant 71, and strengthening rib 75 forms a reinforced frame, can effectively improve the intensity of strengthening rib 75, has further increased outer door plant 71's intensity, has improved outer door plant 71's life.

In this embodiment, the external service door 211 further includes a door lock 76, the door lock 76 is disposed on the outer side of the outer door panel 71, the reinforcing rib 75 is disposed on the inner side of the outer door panel 71, and the door lock 76 is disposed opposite to the reinforcing rib 75. Since the strength of the outer door panel 71 at the position of the door lock 76 is weakest, the outer door panel 71 is hollowed at the position of the door lock 76, the door lock 76 needs to be placed, and the door opening is performed each time the door is closed, the position of the door lock 76 is stressed, so that the reinforcing rib 75 is arranged on the inner side of the outer door panel 71, and the reinforcing rib 75 is arranged opposite to the position of the door lock 76, so that the strength of the outer door panel 71 at the position of the door lock 76 is improved.

In some embodiments, the outer door panel 71 includes a door frame 711, the door frame 711 is a hollow structure, and the first soundproof layer 73 is disposed inside the door frame 711; the inner door panel 72 includes a cover body 721 and an extension portion 722 provided on the cover body 721, the second soundproof layer 74 is provided inside the cover body 721, and the inner door panel 72 is fixed to the door frame 711 by the extension portion 722. In this way, the first soundproof layer 73 is embedded in the door frame 711 of the outer door panel 71, the second soundproof layer 74 is embedded in the cover body 721 of the inner door panel 72, and the inner door panel 72 passes through the extension portion 722 by bolts to fix the inner door panel 72 to the outer door panel 71, thereby improving the stability of fixing the inner door panel 72 to the outer door panel 71.

In this embodiment, the first soundproof layer 73 is a rock wool layer, and the second soundproof layer 74 is a sponge layer. The sponge primary action is that the absorption diesel generating set is inside because of vibrations or other reasons produce the wave band of different frequency and filter some noises, and the most noises of rethread rock wool separation, rethread door plant absorb the separation noise through different materials like this, and the noise abatement passes away, reaches the effect of noise reduction. The cotton made of two materials can eliminate the noise with different frequencies to achieve the effect of noise reduction. The noise is effectively reduced under the condition of no change of the appearance.

As shown in fig. 8 to 9, in some embodiments, the silencing box of the diesel generator set further includes a silencer, where the silencer includes a silencer body 41, an air inlet duct 42, and an air outlet duct 43, the silencer body 41 is used to muffle the tail gas of the diesel generator set, the silencer body 41 is provided with an air inlet and an air outlet, the air inlet is communicated with the air inlet duct 42, and the air outlet is communicated with the air outlet duct 43; wherein, silencer body 41 includes interior casing 411 and shell body 412, and interior casing 411 sets up in the inside of shell body 412, and inlet duct 42, outlet duct 43 are linked together with interior casing 411 respectively, are provided with the accommodation space that is used for placing sound absorbing material in the interior casing 411, are provided with the accommodation space that is used for placing sound absorbing material between interior casing 411 and the shell body 412. So, diesel generating set's tail gas gets into interior casing 411 in, and the sound absorbing material through interior casing 411 in carries out the first noise elimination, and the sound absorbing material between interior casing 411 and shell body 412 of process carries out the second noise elimination, makes the silencer reach and falls the requirement of making an uproar.

In some embodiments, the intake duct 42 includes a first vertical pipe 421 and a first horizontal pipe 422, one end of the first vertical pipe 421 communicates with the intake port, and the other end of the first vertical pipe 421 communicates with the first horizontal pipe 422 through an elbow 423; the first vertical tube 421 is fixedly connected to the air inlet through an anchor ear 424, and the first horizontal tube 422 is fixedly connected to the first vertical tube 421 through the anchor ear 424. So, through the cooperation of first violently pipe 422 with first standpipe 421, can change the direction of tail gas, can rationally set up the position of silencer body 41.

In this embodiment, the first vertical tube 421 is fixedly connected to the air inlet through the hoop 424, and the first horizontal tube 422 is fixedly connected to the first vertical tube 421 through the hoop 424. So, first standpipe 421 realize through staple bolt 424 and the air inlet between can dismantle be connected, conveniently fix first standpipe 421, first violently manage 422 realize through staple bolt 424 and first standpipe 421 between can dismantle be connected, make things convenient for first standpipe 421's installation, fixed.

In some embodiments, the intake duct 42 further includes a bellows 425 and a second vertical tube 426, the first horizontal tube 422 is communicated with the second vertical tube 426 via the bellows 425, and the bellows 425 is a flexible connecting tube. Therefore, the corrugated pipe 425 is a soft connecting pipe, which mainly plays roles of soft connection and damping adjustment, and is convenient for adjusting the position of the second vertical pipe 426 and mounting the muffler.

In this embodiment, the air outlet duct 43 includes a third vertical pipe, and the third vertical pipe is connected to the air outlet through an anchor ear 424. Thus, the third standpipe can be detachably connected with the air outlet through the hoop 424. In this embodiment, the air inlet and the air outlet are both provided with a connecting pipeline. The outer housing 412 and the inner housing 411 are both barrel-shaped structures, and the outer housing 412 is sleeved on the inner housing 411. Therefore, the outer housing 412 is conveniently sleeved on the inner housing 411, and two end faces of the inner housing 411 are fixed on the outer housing 412. The bottom of the muffler body 41 is provided with a mounting seat 44. Therefore, the silencer body 41 is fixed in the silencing box of the diesel generator set through the mounting seat 44, and the silencer body 41 is convenient to mount.

The difference prior art, all fall the noise reduction for the bilayer through back air inlet part 3, middle part 2, front exhaust part 1 in this embodiment, the systematic solution noise problem makes the overall structure of diesel generating set silence case reach the requirement of falling the noise.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.

Claims (10)

1. A silent box of a diesel generator set is characterized by comprising a front exhaust component, a middle component and a rear exhaust component, wherein the front exhaust component, the middle component and the rear exhaust component are sequentially arranged, the middle component is provided with an accommodating space for accommodating the diesel generator set, the rear exhaust component is provided with an air inlet, the rear exhaust component is communicated with the middle component, the middle component is communicated with the front exhaust component, and the front exhaust component is provided with an air outlet;

the air inlet is provided with a first shutter assembly, the rear air inlet component is communicated with the middle component through a second shutter assembly, and the first shutter assembly and the second shutter assembly are used for reducing noise;

the middle part comprises an external component and an internal component, the internal component is arranged inside the external component, a gap is reserved between the external component and the internal component, and the front end and the rear end of the middle part are respectively provided with the external component and the internal component;

and the rear air inlet component is provided with a noise prevention box, the air outlet is arranged at the top of the front air outlet component, the noise prevention box is arranged at the top of the front air outlet component and covers the air outlet, and the noise prevention box is used for reducing noise.

2. The silent box of a diesel generator set according to claim 1, wherein the external component is connected to the internal component through a hanging beam, and the silent box of a diesel generator set further comprises a hanging plate, and the hanging plate is fixed to the hanging beam through a bolt.

3. The silent box of diesel generator set according to claim 2, wherein the two internal components are connected to each other by a connecting beam, the hanging beam is connected to the connecting beam by a sound insulation board, and a sound insulation board is arranged between the hanging beam and the hanging board.

4. The silence enclosure of claim 1, wherein the outer assembly comprises two outer maintenance doors, the two outer maintenance doors being arranged in a row, and the inner assembly comprises two inner maintenance doors, the two inner maintenance doors being disposed behind the two outer maintenance doors.

5. The silencing box of the diesel generator set according to claim 4, wherein the external maintenance door comprises an outer door plate, an inner door plate, a first sound insulation layer and a second sound insulation layer, the outer door plate, the first sound insulation layer, the second sound insulation layer and the inner door plate are sequentially arranged from outside to inside, and a gap is reserved between the first sound insulation layer and the second sound insulation layer;

the outer door plate is provided with a first accommodating space for accommodating the first sound-insulating layer, the inner door plate is provided with a second accommodating space for accommodating the second sound-insulating layer, and reinforcing ribs are arranged on the outer door plate.

6. The silent box of the diesel generator set according to claim 5, wherein the reinforcing rib is arranged in the middle of the outer door plate, the first sound insulation layer comprises an upper sound insulation layer and a lower sound insulation layer, the upper sound insulation layer is arranged above the reinforcing rib, and the lower sound insulation layer is arranged below the reinforcing rib.

7. The silencing box of the diesel generator set according to claim 5, wherein the outer door plate comprises a door frame, the door frame is of a hollow structure, and the first sound insulation layer is arranged in the door frame;

the inner door plate comprises a cover body and an extension part arranged on the cover body, the second sound insulation layer is arranged in the cover body, and the inner door plate is fixed on the door frame through the extension part.

8. The silencing box of the diesel generator set according to claim 1, further comprising a silencer, wherein the silencer comprises a silencer body, an air inlet pipeline and an air outlet pipeline, the silencer body is used for silencing tail gas of the diesel generator set, the silencer body is provided with an air inlet and an air outlet, the air inlet is communicated with the air inlet pipeline, and the air outlet is communicated with the air outlet pipeline;

wherein, the silencer body includes interior casing and shell body, interior casing sets up the inside of shell body, the admission line give vent to anger the pipeline respectively with interior casing is linked together, be provided with the accommodation space that is used for placing sound absorbing material in the interior casing, interior casing with be provided with the accommodation space that is used for placing sound absorbing material between the shell body.

9. The silence chamber of claim 8, wherein the air intake duct comprises a first vertical duct and a first horizontal duct, one end of the first vertical duct is communicated with the air intake, and the other end of the first vertical duct is communicated with the first horizontal duct through a bent pipe;

the first vertical pipe is fixedly connected with the air inlet through an anchor ear, and the first transverse pipe is fixedly connected with the first vertical pipe through an anchor ear.

10. The silence chamber of claim 9, wherein the air intake duct further comprises a corrugated pipe and a second vertical pipe, the first horizontal pipe is communicated with the second vertical pipe through the corrugated pipe, and the corrugated pipe is a flexible connecting pipe.

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