CN207033564U

CN207033564U - A kind of smoke discharging pipe of diesel engine

Info

Publication number: CN207033564U
Application number: CN201720719478.9U
Authority: CN
Inventors: 刘妍; 付长志
Original assignee: Xi Wu Container Technology (shanghai) Co Ltd
Current assignee: Xi Wu Container Technology (shanghai) Co Ltd
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2018-02-23
Anticipated expiration: 2027-06-20

Abstract

The utility model discloses a kind of smoke discharging pipe of diesel engine, including：Entrance of the outlet of first pipeline, second pipe and the 3rd pipeline, the first pipeline and second pipe with the 3rd pipeline connects, and the first pipeline, second pipe form V-structure, and the first pipeline, second pipe and the 3rd pipeline form y-type structure.Angle between first pipeline and second pipe is 100 °~130 °.First pipeline and second pipe include the straight length being interconnected respectively and inclined tube section, straight length connect with the exhaust opening of diesel engine, and the pipeline communications of inclined tube Duan Yu tri-, the bore of inclined tube section gradually increases from its one end to the other end.The flue gas in two exits of diesel engine is combined into one by smoke discharging pipe of the present utility model, the escape pipe discharge common from one, entered after bellows and bend pipe and noise reduction is carried out in muffler, the noise impedance behavior that can improve smoke discharging pipe is so set, reaches preferable noise reduction.

Description

A kind of smoke discharging pipe of diesel engine

Technical field

The structure-design technique field of diesel engine is the utility model is related to, espespecially a kind of smoke discharging pipe of diesel engine.

Background technology

Diesel generating set is the stand-by power supply under extensive framework, in case emergent use.In terms of present situation, diesel-driven generator Group is just received and used extensively.But run in the period, unit can bring noise jamming bigger than normal, and noise decibel is even up to More than 120db, noise pollution are extremely serious.To reduce this interference, it is necessary to the indispensable smoke evacuation of construction diesel-driven generator unit Noise reduction system, adopt suitable improvement path, reduce noise pollution, energy source optimization in order.

Therefore, the applicant is directed to providing a kind of new diesel smoke pipeline.

Utility model content

The purpose of this utility model is to provide a kind of diesel smoke pipeline, and its is simple in construction, and noise impedance behavior is good, can Effectively to reduce noise pollution.

The utility model provides a kind of smoke discharging pipe of diesel engine, including：First pipeline, second pipe and the 3rd pipe Road, the entrance exported with the 3rd pipeline of first pipeline and second pipe connect, first pipeline, the second pipe Road forms a V-structure, and first pipeline, second pipe and the 3rd pipeline form a y-type structure.

Preferably, the angle between first pipeline and second pipe is 100 °~130 °.

Preferably, first pipeline includes the first interconnected straight length and the first inclined tube section, first straight tube Section is used to connect with the exhaust opening of the diesel engine, the first inclined tube section and the 3rd pipeline communication.

Preferably, the bore of the first inclined tube section gradually increases from its first end to its second end, first inclined tube The first end of section is one end that the first inclined tube section is connected with first straight length.

Preferably, the second pipe includes the second interconnected straight length and the second inclined tube section, second straight tube Section is used to connect with the exhaust opening of the diesel engine, the second inclined tube road and the 3rd pipeline communication.

Preferably, the bore of the second inclined tube section gradually increases from its first end to its second end, second inclined tube The first end of section is one end that the second inclined tube section is connected with second straight length.

Preferably, it is provided with first flange at the air inlet of first pipeline, the first flange is used to connecting described the The exhaust opening of one pipeline and the diesel engine.

Preferably, it is provided with second flange at the air inlet of the second pipe, the second flange is used to connecting described the The exhaust opening of two pipelines and the diesel engine.

Preferably, the gas outlet of the 3rd pipeline is provided with the 3rd flange, and the 3rd flange is used to connect the described 3rd Pipeline and bellows.

Preferably, the 3rd flange is steel flange.

A kind of smoke discharging pipe of diesel engine provided by the utility model can bring following at least one beneficial effect：

1st, the flue gas in two exits of diesel engine is combined into one by smoke discharging pipe of the present utility model, common is gone out from one Tracheae is discharged, and is entered after bellows and bend pipe and noise reduction is carried out in muffler, and smoke discharging pipe can be improved by so setting Noise impedance behavior, reach preferable noise reduction.

2nd, in smoke discharging pipe of the present utility model first pipeline and second pipe by straight-run of pipe and one section of inclined tube group Into, and the caliber of inclined tube gradually increases, noise impedance behavior can further be improved by so setting.

3rd, the gas outlet that the first pipeline in smoke discharging pipe of the present utility model and second pipe pass through flange and diesel engine Connection, the 3rd pipeline can further strengthen the anti-acoustic capability of smoke discharging pipe by flange and bellows, the form of flange connection.

Brief description of the drawings

Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to diesel engine of the present utility model Above-mentioned characteristic, technical characteristic, advantage and its implementation of smoke discharging pipe be further described.

Fig. 1 is a kind of schematic perspective view of specific embodiment of the smoke discharging pipe of diesel engine of the present utility model；

Fig. 2 is the front view of the smoke discharging pipe of the diesel engine shown in Fig. 1.

Drawing reference numeral explanation：

First pipeline 10, the first straight length 11, the first inclined tube section 12, second pipe 20, the second straight length 21, the second inclined tube Section 22, the 3rd pipeline 30, first flange 41, second flange 42, the 3rd flange 43.

Embodiment

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.To make simplified form, only schematically showing in each figure The part related to the utility model, they do not represent its practical structures as product.

Fig. 1,2 disclose diesel engine smoke discharging pipe a kind of specific embodiment, including：First pipeline 10, second pipe 20 and the 3rd pipeline 30, the entrance of the outlet of the first pipeline 10 and second pipe 20 with the 3rd pipeline 30 connects, the first pipeline 10th, second pipe 20 forms a V-structure, and the first pipeline 10, the pipeline 30 of second pipe 20 and the 3rd form a y-type structure.Tool Body, the angle between the first pipeline 10 and second pipe 20 is 100 °~130 °.Here V-structure and y-type structure is not only Include the V-type and Y types of rule, in addition to similar to V-type and the structure of Y types.

In the present embodiment, the first pipeline 10 includes the first interconnected straight length 11 and the first inclined tube section 12, and first Straight length 11 is used to connect with the exhaust opening of diesel engine, and the first inclined tube section 12 connects with the 3rd pipeline 30.Specifically, the first inclined tube The bore of section 12 gradually increases from its first end to its second end, and the first end of the first inclined tube section is that the first inclined tube section and first are straight One end that pipeline section 11 connects.The anti-acoustic capability of the first pipeline can be improved by so setting.

In the present embodiment, second pipe 20 includes the second interconnected straight length 21 and the second inclined tube section 22, and second Straight length 21 is used to connect with the exhaust opening of diesel engine, and the second inclined tube road connects with the 3rd pipeline 30.Specifically, the second inclined tube section 22 bore gradually increases from its first end to its second end, and the first end of the second inclined tube section 22 is the second inclined tube section 22 and second One end that straight length 21 connects.The anti-acoustic capability of second pipe can be improved by so setting.

In the present embodiment, it is provided with first flange 41 at the air inlet of the first pipeline 10, first flange 41 is used to connecting the The exhaust opening of one pipeline 10 and diesel engine；Second flange 42 is provided with the air inlet of second pipe 20, second flange 42 is used to connect Connect the exhaust opening of second pipe 20 and diesel engine；The gas outlet of 3rd pipeline 30 is provided with the 3rd flange 43, and the 3rd flange 43 is used for Connect the 3rd pipeline 30 and bellows.Also, the 3rd flange 43 is steel flange.Flange type of attachment consolidates, and passes through flange Fixed smoke discharging pipe and external structure, when the big flow velocity of flue gas flow can be avoided fast, pipeline shakes generation under the impact of flue gas Noise, so as to further improve the anti-acoustic capability of smoke discharging pipe.

This specific embodiment is discharged by the way that the flue gas in two exits of diesel engine is combined into one by the 3rd pipeline Noise reduction is carried out, and the first pipeline and second pipe structure design are special, these can strengthen the anti-acoustic capability of smoke discharging pipe, reach To the effect of energy source optimization.

In the specific embodiment of smoke discharging pipe of the present utility model, each size for forming pipeline and mutual angle The structural parameters such as relation can influence its overall anti-acoustic capability.It is a kind of preferably embodiment below.

First pipeline 10 and the structure snd size all same of second pipe 20, between the central axis of the straight length of the two between Away from for 940mm, the bore of the straight length of the first pipeline 10 and second pipe 20 is 275mm, straight length be connected with inclined tube section one Hold as an inclined-plane, the shortest length of straight length is 50mm, extreme length 98mm, so as to form a beveled end, the first pipeline 10 Angle between second pipe 20 is 111 °, and first flange 41 and second flange 42 are in the same plane, the 3rd flange 43 Spacing between first flange 41, second flange 42 is 500mm, and the length and the thickness of the 3rd flange 43 of the 3rd pipeline 30 are total With for 80mm.

Using CAD software and the smoke discharging pipe under above-mentioned condition is modeled PROE softwares and numerical simulation, calculates knot Fruit shows that the smoke discharging pipe under said structure parameter has good acoustic attenuation performance in wider frequency band range, disclosure satisfy that Required 25db~35db the sound deadening capacities of design.

Certainly, in other specific embodiments of the smoke discharging pipe of diesel engine of the present utility model, the first pipeline, the second pipe Angle and the pipeline configuration of the two between road can be adjusted according to being actually needed, the first pipeline, second pipe and bavin The exhaust opening of oil machine can also be fixedly connected by other fixed forms, and the 3rd pipeline can also be by other means with bellows It is fixedly connected；3rd flange can also be made by common iron；The structural parameters of three pipelines can according to be actually needed into Row adjustment, here is omitted.

It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims

A kind of 1. smoke discharging pipe of diesel engine, it is characterised in that including：

First pipeline, second pipe and the 3rd pipeline, the outlet of first pipeline and second pipe with the 3rd pipeline Entrance connection, first pipeline, second pipe formed a V-structure, first pipeline, second pipe and the 3rd pipeline Form a y-type structure.
2. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

Angle between first pipeline and second pipe is 100 °~130 °.
3. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

First pipeline includes the first interconnected straight length and the first inclined tube section, first straight length be used for it is described The exhaust opening connection of diesel engine, the first inclined tube section and the 3rd pipeline communication.
4. the smoke discharging pipe of diesel engine according to claim 3, it is characterised in that：

The bore of the first inclined tube section gradually increases from its first end to its second end, and the first end of the first inclined tube section is One end that the first inclined tube section is connected with first straight length.
5. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

The second pipe includes the second interconnected straight length and the second inclined tube section, second straight length be used for it is described The exhaust opening connection of diesel engine, the second inclined tube road and the 3rd pipeline communication.
6. the smoke discharging pipe of diesel engine according to claim 5, it is characterised in that：

The bore of the second inclined tube section gradually increases from its first end to its second end, and the first end of the second inclined tube section is One end that the second inclined tube section is connected with second straight length.
7. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

It is provided with first flange at the air inlet of first pipeline, the first flange is used to connecting first pipeline and described The exhaust opening of diesel engine.
8. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

It is provided with second flange at the air inlet of the second pipe, the second flange is used to connecting the second pipe and described The exhaust opening of diesel engine.
9. the smoke discharging pipe of diesel engine according to claim 1, it is characterised in that：

The gas outlet of 3rd pipeline is provided with the 3rd flange, and the 3rd flange is used to connect the 3rd pipeline and ripple Pipe.
10. the smoke discharging pipe of diesel engine according to claim 9, it is characterised in that：

3rd flange is steel flange.