CN213298076U

CN213298076U - Bipolar noise eliminator for vehicle-mounted generator set

Info

Publication number: CN213298076U
Application number: CN202021339524.0U
Authority: CN
Inventors: 沈龙淼
Original assignee: Fuzhou Kapur Power Equipment Co ltd
Current assignee: Fuzhou Kapur Power Equipment Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-05-28
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to a vehicle-mounted generator set technical field, aim at provides a bipolar noise eliminator for vehicle-mounted generator set, which comprises a housin, the welding of shells inner wall has the spacer ring, and the inside nature of casing of spacer ring one side is formed with the one-level amortization room, the inside nature of casing of spacer ring opposite side is formed with the second grade amortization room, one side of casing is provided with the intake pipe, and inside one side outer wall that the one end of intake pipe runs through the casing extends to the one-level amortization room, the one end welding of the inside intake pipe of one-level amortization room has the bellows, the welding has evenly distributed's amortization spring on the indoor wall of one-level amortization. The beneficial effects of the utility model reside in that, utilize the noise to drive the sheetmetal on the amortization spring and shake the acting for the noise is subducted, and the noise is through second grade anechoic chamber once more, utilizes to keep off the ring and subducts the noise once more, makes the noise reach the noise cancelling effect of ideal.

Description

Bipolar noise eliminator for vehicle-mounted generator set

Technical Field

The utility model relates to a vehicle-mounted generator set technical field especially relates to a vehicle-mounted generator set is with bipolar noise eliminator.

Background

The vehicle-mounted generator set is a generator set installed on a motor vehicle, and when some equipment needs temporary power supply due to power failure, the vehicle-mounted generator set is used for generating power by using fuel oil as an energy source to provide power for the equipment. During the on-vehicle generating set work electricity generation, the fuel after the burning can become the tail gas and discharge, can produce very big noise when the tail gas is discharged, uses the noise elimination to weaken the adverse effect that the noise that the tail gas emission produced brought usually.

The silencing device for the vehicle-mounted generator set in the prior art has the following defects:

(1) the noise reduction structure is simple, noise generated by the exhaust of the generator set after noise reduction is still very large, and noise pollution is generated.

(2) The noise eliminator is easy to break off due to the installation of the cantilever.

(3) The tail gas that generating set produced makes noise eliminator temperature rise, the danger of easy emergence scald.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a good, the safe bipolar noise eliminator for on-vehicle generating set of noise cancelling effect.

In order to realize the purpose, the utility model discloses a technical scheme be:

a bipolar noise eliminator for a vehicle-mounted generator set comprises a shell, wherein a spacer ring is welded on the inner wall of the shell, a primary silencing chamber is naturally formed inside the shell on one side of the spacer ring, a secondary silencing chamber is naturally formed inside the shell on the other side of the spacer ring, an air inlet pipe is arranged on one side of the shell, one end of the air inlet pipe penetrates through the outer wall of one side of the shell and extends into the primary silencing chamber, a corrugated pipe is welded at one end of the air inlet pipe inside the primary silencing chamber, a damping spring is sleeved on the outer wall of the corrugated pipe, a connecting pipe is welded at one end of the corrugated pipe, away from the air inlet pipe, one end of the connecting pipe, away from the corrugated pipe, penetrates through the outer wall of one side of the spacer ring and extends into the secondary silencing chamber, silencing springs which are uniformly distributed are welded on the inner wall of the primary silencing chamber, a, and one end of the air outlet pipe extends to the inside of the second-stage silencing room, a spiral pipe is welded at one end of the air outlet pipe in the second-stage silencing room, one end, far away from the air outlet pipe, of the spiral pipe is welded with the connecting pipe, a protective cover is sleeved on the outer portion of the air outlet pipe, and one end of the protective cover is welded with the shell.

The key concept of the technical scheme is as follows: noise from generating set comes out is earlier through one-level amortization room, utilizes the noise to drive the sheetmetal on the amortization spring and shakes the acting for the noise is subducted, and the noise is through second grade amortization room once more, utilizes to keep off the ring and subducts the noise once more, makes the noise that vehicle-mounted generating set's exhaust emissions produced reach the noise cancelling effect of ideal.

Furthermore, the inner wall of the primary silencing chamber is provided with a silencing layer, and the inner wall of the silencing layer is provided with a protective layer.

Furthermore, the end of the air inlet pipe, which is far away from the shell, is welded with a flange, and the outer wall of one side of the flange is provided with uniformly distributed mounting holes.

Furthermore, the bottom welding of flange has the fixed plate, the bottom outer wall welding of casing has the collet, and the welding has the support frame between collet and the fixed plate.

Furthermore, the inner wall welding of spiral pipe has evenly distributed's fender ring, and the one side outer wall of keeping off the ring is opened there is the gas pocket.

Furthermore, one end of the air outlet pipe, which is far away from the shell, is welded with an elbow pipe, and the inside of the secondary anechoic chamber is provided with anechoic cotton.

Furthermore, the metal sheet is circular, and the outer wall of one side of the metal sheet, which is far away from the silencing spring, is a concave surface.

The utility model has the advantages that: (1) through the arrangement of the first-stage silencing chamber and the second-stage silencing chamber, noise from the generator set firstly passes through the first-stage silencing chamber, the noise is used for driving the metal sheet on the silencing spring to vibrate and do work, so that the noise is reduced, the noise passes through the second-stage silencing chamber again, and the baffle ring is used for reducing the noise again, so that the noise generated by the exhaust emission of the vehicle-mounted generator set achieves an ideal silencing effect, and the noise pollution generated by the exhaust is reduced; (2) the fixed plate is fixed with the vehicle-mounted generator set through the fixed plate, the base and the support frame, so that the support frame supports the shell through the base, and the air inlet pipe is prevented from being broken due to long-term cantilever; (3) by the arrangement of the silencing layer and the silencing cotton, noise is blocked and transmitted in the primary silencing chamber and the secondary silencing chamber by the silencing layer and the silencing cotton, so that a good silencing effect is further realized; (4) through the protection casing that sets up, utilize the protection casing to cup joint in the outlet duct outside, prevent that the people from touching the outlet duct, the danger of scalding takes place, has consequently realized safe in utilization's effect.

Drawings

Fig. 1 is a schematic structural diagram of a bipolar muffler device for a vehicle-mounted generator set according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a primary muffling chamber of a bipolar muffling device for a vehicle-mounted generator set according to an embodiment of the present invention.

Fig. 3 is a schematic view of a baffle ring structure of a bipolar muffler device for a vehicle-mounted generator set according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a corrugated pipe of a bipolar muffler device for a vehicle-mounted generator set according to an embodiment of the present invention.

The reference numbers illustrate:

1-shell, 2-air inlet pipe, 3-flange, 4-fixed plate, 5-air outlet pipe, 6-elbow pipe, 7-isolating ring, 8-primary anechoic chamber, 9-anechoic layer, 10-anechoic spring, 11-metal sheet, 12-corrugated pipe, 13-connecting pipe, 14-secondary anechoic chamber, 15-spiral pipe, 16-anechoic cotton, 17-baffle ring, 18-air hole, 19-damping spring, 20-mounting hole, 21-bottom support, 22-support frame, 23-protective layer and 24-protective cover.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

as shown in fig. 1-4, the utility model provides a bipolar noise eliminator for vehicle-mounted generator set, which comprises a casing 1, a cavity is arranged in the casing 1, a spacer ring 7 is welded on the inner wall of the casing 1, the inside of the casing is divided into two parts by the spacer ring 7, a first-stage silencing chamber 8 is naturally formed in the casing 1 on one side of the spacer ring 7, a second-stage silencing chamber 14 is naturally formed in the casing 1 on the other side of the spacer ring 7, the noise generated by the exhaust emission of the vehicle-mounted generator set is reduced by the bipolar noise eliminator composed of the first-stage silencing chamber 8 and the second-stage silencing chamber 14, an air inlet pipe 2 is arranged on one side of the casing 1, one end of the air inlet pipe 2 extends to the inside of the first-stage silencing chamber 8 through the outer wall on one side of the casing 1, the air inlet pipe 2 is connected with the exhaust outlet of the vehicle-mounted generator set, so that the exhaust enters the first-, the corrugated pipe 12 is a thin-wall pipeline made of aluminum foil, the outer wall of the corrugated pipe 12 is sleeved with a damping spring 19, the damping spring 19 is wound at the corrugated groove of the corrugated pipe 12, the corrugated pipe 12 is vibrated to do work through the damping spring 19 by using energy generated by noise, the noise is weakened, one end of the corrugated pipe 12, which is far away from the air inlet pipe 2, is welded with a connecting pipe 13, one end of the connecting pipe 13, which is far away from the corrugated pipe 12, penetrates through the outer wall of one side of the spacer ring 7 and extends into the inside of the second-stage silencing chamber 14, the noise is weakened through the first-stage silencing chamber 8 and then enters the second-stage silencing chamber 14 through the connecting pipe 13, the inner wall of the first-stage silencing chamber 8 is welded with uniformly distributed silencing springs 10, one end, which is far away from the inner wall of the first-stage silencing chamber 8, is welded with a, casing 1 keeps away from the one end welding of intake pipe 2 has outlet duct 5, the tail gas that on-vehicle generating set produced is discharged through outlet duct 5, and the one end of outlet duct 5 extends to second grade amortization indoor 14 inside, 5 one end welding of outlet duct of second grade amortization indoor 14 inside have spiral pipe 15, the noise can be weakened through crooked spiral pipe 15, and spiral pipe 15 keeps away from the one end and the connecting pipe 13 welding of outlet duct 5, make spiral pipe 15 and bellows 12 intercommunication, the protection casing 24 has been cup jointed to 5 outsides of outlet duct, and the one end and the 1 welding of casing 24, utilize protection casing 24 to make the people be difficult to touch outlet duct 5, the heat that prevents tail gas production makes outlet duct 5 produce the harm of.

As can be seen from the above description, the present invention has the following advantages: through the one-level anechoic chamber 8 and the second grade anechoic chamber 14 that set up, the noise that comes out from generating set passes through one-level anechoic chamber 8 earlier, utilize the noise to drive sheetmetal 11 on the amortization spring 10 and shake the acting, make the noise subduct, the noise passes through second grade anechoic chamber 14 once more, utilize to keep off ring 17 and subduct the noise once more, make on-vehicle generating set's exhaust emissions reach ideal noise cancelling effect, reduce the noise pollution that tail gas produced.

Further, the inner wall of the primary silencing chamber 8 is provided with a silencing layer 9, the silencing layer 9 is made of glass fiber plates, the inner wall of the silencing layer 9 is provided with a protective layer 23, and the protective layer 23 prevents the protective layer 23 from being loose.

Further, the flange 3 is welded at one end, far away from the shell 1, of the air inlet pipe 2, the mounting holes 20 are evenly distributed in the outer wall of one side of the flange 3, and the mounting holes 20 in the flange 3 are utilized to enable the whole vehicle-mounted generator set to be mounted and connected.

Further, the welding of the bottom of flange 3 has fixed plate 4, also has the through-hole of installation on fixed plate 4, and the welding of the bottom outer wall of casing 1 has collet 21, and collet 21 plays the effect of lifting to casing 1, and the welding has support frame 22 between collet 21 and the fixed plate 4, and support frame 22 plays the effect to the support of casing 1 through collet 21, and noise eliminator prevents to locate the rupture from intake pipe 5.

Further, the inner wall of the spiral pipe 15 is welded with the baffle rings 17 which are evenly distributed, the baffle rings 17 are welded with the spiral pipe 15 in an inclined mode, noise passing through the spiral pipe 15 is gradually weakened through the baffle rings 17, air holes 18 are formed in the outer wall of one side of the baffle rings 17, and tail gas can smoothly pass through the spiral pipe 15 through the air holes 18.

Further, the one end welding that casing 1 was kept away from to outlet duct 5 has elbow pipe 6, and elbow pipe 6 changes the direction of discharge of tail gas for tail gas is discharged downwards, and 14 inside amortization cottons 16 that are provided with of second grade amortization room, amortization cotton 16 adopt the rock wool material to make, plays the effect of subducing to the noise that passes spiral pipe 15.

Furthermore, the metal sheet 11 is circular, and the outer wall of the metal sheet 11 on the side away from the noise reduction spring 10 is concave, and the concave design of the metal sheet 11 makes the metal sheet 11 more susceptible to noise and vibration.

By adopting the sound-deadening layer 9 and the sound-deadening cotton 16, the sound-deadening layer 9 and the sound-deadening cotton 16 are utilized to block and spread the noise inside the first-stage sound-deadening chamber 8 and the second-stage sound-deadening chamber 14, thereby further realizing good sound-deadening effect.

In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art.

Example 1

As shown in fig. 1-4, the utility model provides a bipolar muffler device for vehicle-mounted generator set, which comprises a housing 1, a cavity is arranged in the housing 1, a spacer ring 7 is welded on the inner wall of the housing 1, the inside of the housing is divided into two parts by the spacer ring 7, a first-stage muffling chamber 8 is naturally formed in the housing 1 at one side of the spacer ring 7, a second-stage muffling chamber 14 is naturally formed in the housing 1 at the other side of the spacer ring 7, the noise generated by the exhaust emission of the vehicle-mounted generator set is reduced by the two-stage muffling device consisting of the first-stage muffling chamber 8 and the second-stage muffling chamber 14, an air inlet pipe 2 is arranged at one side of the housing 1, one end of the air inlet pipe 2 extends to the inside of the first-stage muffling chamber 8 through the outer wall at one side of the housing 1, the air inlet pipe 2 is connected with the exhaust outlet of the vehicle-mounted generator set, the corrugated pipe 12 is a thin-wall pipeline made of aluminum foil, the outer wall of the corrugated pipe 12 is sleeved with a damping spring 19, the damping spring 19 is wound at the corrugated groove of the corrugated pipe 12, the corrugated pipe 12 is vibrated to do work through the damping spring 19 by using energy generated by noise, the noise is weakened, one end of the corrugated pipe 12, which is far away from the air inlet pipe 2, is welded with a connecting pipe 13, one end of the connecting pipe 13, which is far away from the corrugated pipe 12, penetrates through the outer wall of one side of the spacer ring 7 and extends into the inside of the second-stage silencing chamber 14, the noise is weakened through the first-stage silencing chamber 8 and then enters the second-stage silencing chamber 14 through the connecting pipe 13, the inner wall of the first-stage silencing chamber 8 is welded with uniformly distributed silencing springs 10, one end, which is far away from the inner wall of the first-stage silencing chamber 8, is welded with a, casing 1 keeps away from the one end welding of intake pipe 2 has outlet duct 5, the tail gas that on-vehicle generating set produced is discharged through outlet duct 5, and the one end of outlet duct 5 extends to second grade amortization indoor 14 inside, 5 one end welding of outlet duct of second grade amortization indoor 14 inside have spiral pipe 15, the noise can be weakened through crooked spiral pipe 15, and spiral pipe 15 keeps away from the one end and the connecting pipe 13 welding of outlet duct 5, make spiral pipe 15 and bellows 12 intercommunication, the protection casing 24 has been cup jointed to 5 outsides of outlet duct, and the one end and the 1 welding of casing 24, utilize protection casing 24 to make the people be difficult to touch outlet duct 5, the heat that prevents tail gas production makes outlet duct 5 produce the harm of.

Wherein, the inner wall of the primary silencing chamber 8 is provided with a silencing layer 9, the silencing layer 9 is made of glass fiber board, the inner wall of the silencing layer 9 is provided with a protective layer 23, and the protective layer 23 prevents the protective layer 23 from loosening; a flange 3 is welded at one end of the air inlet pipe 2, which is far away from the shell 1, the outer wall of one side of the flange 3 is provided with mounting holes 20 which are uniformly distributed, and the whole body is mounted and connected with the vehicle-mounted generator set by utilizing the mounting holes 20 on the flange 3; the bottom of the flange 3 is welded with a fixing plate 4, the fixing plate 4 is also provided with a through hole for installation, the outer wall of the bottom of the shell 1 is welded with a bottom support 21, the bottom support 21 plays a role in lifting the shell 1, a support frame 22 is welded between the bottom support 21 and the fixing plate 4, the support frame 22 plays a role in supporting the shell 1 through the bottom support 21, and the silencer prevents the air inlet pipe 5 from being broken; the inner wall of the spiral pipe 15 is welded with baffle rings 17 which are uniformly distributed, the baffle rings 17 are welded with the spiral pipe 15 in an inclined manner, the baffle rings 17 are utilized to gradually weaken the noise passing through the spiral pipe 15, and the outer wall of one side of each baffle ring 17 is provided with air holes 18, so that the tail gas can smoothly pass through the spiral pipe 15 through the air holes 18; an elbow pipe 6 is welded at one end, far away from the shell 1, of the gas outlet pipe 5, the elbow pipe 6 changes the exhaust direction of the tail gas, so that the tail gas is exhausted downwards, silencing cotton 16 is arranged inside the secondary silencing chamber 14, and the silencing cotton 16 is made of rock wool and plays a role in reducing noise penetrating through the spiral pipe 15; the metal sheet 11 is circular, and the outer wall of the metal sheet 11 on the side away from the noise reduction spring 10 is a concave surface, and the concave surface of the metal sheet 11 makes the metal sheet 11 more susceptible to noise and vibration.

To sum up, the utility model provides a bipolar noise eliminator for vehicle-mounted generator set, through the one-level anechoic chamber 8 and the second-level anechoic chamber 14 that set up, the noise that comes out from the generating set passes through the one-level anechoic chamber 8 earlier, utilize the noise to drive the foil 11 on the amortization spring 10 and carry out the vibrations work of doing, make the noise subduct, the noise passes through the second-level anechoic chamber 14 once more, utilize the fender ring 17 to subduct the noise once more, make the exhaust emission of vehicle-mounted generator set reach ideal noise reduction effect, reduce the noise pollution that the tail gas produced; the fixed plate 4 is fixed with the vehicle-mounted generator set through the fixed plate 4, the bottom support 21 and the support frame 22, so that the support frame 22 supports the shell 1 through the bottom support 21, and the air inlet pipe 2 is prevented from being broken due to long-term cantilever; by arranging the silencing layer 9 and the silencing cotton 16, noise is blocked and transmitted inside the primary silencing chamber 8 and the secondary silencing chamber 14 by utilizing the silencing layer 9 and the silencing cotton 16, so that a good silencing effect is further realized; through the protection casing 24 that sets up, utilize protection casing 24 to cup joint in 5 outsides of outlet duct, prevent that the people from touching outlet duct 5, taking place the danger of scalding, consequently realized safe in utilization's effect.

Specifically, the utility model discloses a theory of operation as follows: the tail gas of the vehicle-mounted generator set enters the air inlet pipe 2 through the mounting holes on the flange 3 and the fixing plate 4 and is connected with the vehicle-mounted generator set through bolts, the noise generated by the tail gas enters the primary silencing chamber 8 through the air inlet pipe 2, when part of the noise meets the corrugated pipe 12, the energy generated by the noise enables the corrugated pipe 12 to vibrate through the damping spring 19 to do work, the noise is weakened, when the noise passes through the corrugated pipe 12 and meets the metal sheet 11, the metal sheet 11 vibrates on the silencing spring 10, the metal sheet 11 vibrates to do work, the noise is further weakened, when the noise meets the silencing layer 9, the noise is weakened again, the noise passing through the shell 1 is very low, the other part of the noise enters the secondary silencing chamber 14 through the connecting pipe 13, part of the noise is weakened through the bent spiral pipe 15, and the noise is gradually weakened through the plurality of baffle rings 17 in the spiral pipe 15, the noise transmitted through the elbow pipe 6 becomes very low, and the noise reduction cotton 16 filled in the secondary silencing chamber 14 also reduces the noise passing through the spiral pipe 15, and in all, the noise generated by the exhaust gas of the vehicle-mounted generator set becomes very low.

The present invention has been described with reference to the above embodiments and the accompanying drawings, however, the above embodiments are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A bipolar noise eliminator for a vehicle-mounted generator set is characterized by comprising a shell, wherein a spacer ring is welded on the inner wall of the shell, a primary silencing chamber is naturally formed inside the shell on one side of the spacer ring, a secondary silencing chamber is naturally formed inside the shell on the other side of the spacer ring, an air inlet pipe is arranged on one side of the shell, one end of the air inlet pipe penetrates through the outer wall of one side of the shell and extends into the primary silencing chamber, a corrugated pipe is welded at one end of the air inlet pipe inside the primary silencing chamber, a damping spring is sleeved on the outer wall of the corrugated pipe, a connecting pipe is welded at one end, away from the air inlet pipe, of the corrugated pipe, one end, away from the corrugated pipe, of the connecting pipe penetrates through the outer wall of one side of the spacer ring and extends into the secondary silencing chamber, silencing springs which are uniformly distributed are welded on the, the one end welding that the intake pipe was kept away from to the casing has the outlet duct, and the one end of outlet duct extends to the indoor portion of second grade amortization, the inside outlet duct one end welding of second grade amortization has the spiral pipe, and the spiral pipe keeps away from the one end and the connecting pipe welding of outlet duct, the protection casing has been cup jointed to the outlet duct outside, and the one end and the casing welding of protection casing.

2. The bipolar noise eliminator for vehicle generator sets according to claim 1, wherein the inner wall of the primary muffling chamber is provided with a muffling layer, and the inner wall of the muffling layer is provided with a protective layer.

3. The bipolar noise eliminator for vehicle-mounted generator sets according to claim 1, wherein a flange is welded to one end of the air inlet pipe away from the housing, and mounting holes are uniformly distributed in the outer wall of one side of the flange.

4. The bipolar noise eliminator for vehicle generator sets according to claim 3, wherein the fixing plate is welded to the bottom of the flange, the bottom outer wall of the shell is welded to the bottom, and the support frame is welded between the bottom and the fixing plate.

5. The bipolar noise eliminator for vehicle-mounted generator sets according to claim 1, wherein baffle rings are welded on the inner wall of the spiral pipe and are evenly distributed, and air holes are formed in the outer wall of one side of each baffle ring.

6. The bipolar noise eliminator for vehicle-mounted generator sets according to claim 1, wherein an elbow pipe is welded to one end of the air outlet pipe, which is far away from the shell, and noise elimination cotton is arranged inside the secondary noise elimination chamber.

7. The bipolar noise eliminator of claim 1, wherein the metal sheet is circular and the outer wall of the metal sheet on the side away from the noise elimination spring is concave.